Deye 8kw vs Sunsynk 8KW Inverter: Choosing the Right Solar Powerhouse
Choosing the perfect solar inverter can feel overwhelming, especially for first-time solar enthusiasts. But don’t worry – We’ve been in the business for almost a decade.
This guide will break down the key differences between the Deye 8kw and Sunsynk 8kw inverters, making your decision easy.
First things first, Deye manufactures Sunsynk so the products are the same internally.
Solar inverters play a crucial role in your solar power system. They convert the direct current (DC) electricity generated by your solar panels into usable alternating current (AC) electricity that powers your home.
Key Evaluation Criteria for Solar Inverters
Here are some key factors to consider when choosing a solar inverter:
Power Output: Ensure the inverter’s output capacity matches your solar panel system’s size to maximize efficiency.
Efficiency: A higher efficiency rating translates to less energy loss during conversion.
Battery Compatibility: If you plan on battery backup, confirm compatibility with your preferred battery brand.
Monitoring and Control Features: Mobile app connectivity allows for easy monitoring of your system’s performance.
Warranty: A longer warranty provides peace of mind and ensures protection against potential failures.
Price:** Compare pricing while keeping in mind features and long-term value.
Deye 8kw Inverter Overview
The Deye 8kw inverter is a solid option for homeowners looking for a reliable and efficient solar solution.
Key Features:
8kW maximum power output
97.6% maximum efficiency
Wi-Fi connectivity for system monitoring (app dependent)
Compatible with various lithium battery brands (check for specific models)
Pros:
Affordable price point
Easy-to-use LCD screen
High efficiency rating
Cons:
Relies on third-party apps for mobile monitoring (Solar Man App or Solar Assistant)
Sunsynk 8KW Inverter Overview
The Sunsynk 8KW inverter offers a feature-rich experience with a dedicated mobile app.
Key Features:
8kW maximum power output
97.6% maximum efficiency
Dedicated Sunsynk mobile app for monitoring
Side-by-Side Feature Comparison
Here’s a quick comparison of the key features between the Deye 8kw and Sunsynk 8KW inverters:
Feature
Deye 8kw Inverter
Sunsynk 8KW Inverter
Maximum Power Output
8kW
8kW
Maximum Efficiency
97.6%
97.6%
Mobile App Monitoring
Third-party apps (Solar Man App or Solar Assistant)
Dedicated Sunsynk App
Battery Compatibility
Various brands (check for specific models)
Various brands (check for specific models)
Warranty
Varies by seller
Varies by seller – usually 2 years
Price
More affordable
Typically pricier
Choosing the Right Inverter for You
The best inverter for you depends on your specific needs and priorities.
Choose Deye 8kw if:
You prioritize affordability
You are comfortable with third-party monitoring apps
You value a clear and easy-to-use LCD screen interface
Choose Sunsynk 8kw if:
You prefer the convenience of a dedicated mobile app
A user-friendly interface is important to you! The Deye is great if you love to tinker, but many complain that it’s not user friendly.
Budget is less of a constraint
Taking the Next Step with Your Solar Journey
Now that you have a clear understanding of the Deye 8kw and Sunsynk 8kw inverters, you’re well on your way to choosing the perfect fit for your solar power system.
Ready to make the switch to solar power? Contact us today to discuss your specific needs and receive a customized quote. We can help you determine the ideal inverter for your system and ensure a smooth installation process.
Let us know which on you’re leaning towards the Deye or the Sunsynk?
Congratulations on taking the first step towards a brighter future powered by clean energy. This guide dives deep into everything you need to know about the Sunsynk 5kW hybrid inverter, a popular choice for South African homeowners looking to harness the power of the sun.
Whether you’re a complete solar newbie or looking to expand your knowledge, this comprehensive resource will equip you with the information to make informed decisions about your solar power setup.
You don’t have to read everything.
Just click on the table of contents below to get answers about whether the Sunsynk 5kW hybrid inverter is right for you.
What are Hybrid Inverters? The Brains Behind Your Solar System
A solar inverter plays a crucial role in your solar power system. It essentially translates the direct current (DC) electricity generated by your solar panels into usable alternating current (AC) that powers your home’s appliances. Hybrid inverters, like the Sunsynk 5kW, take things a step further. They not only handle grid-tied solar applications but can also integrate with battery storage for off-grid or backup power capabilities.
Key Features of the Sunsynk 5kW Hybrid Inverter
The Sunsynk 5kW hybrid inverter boasts a range of features designed to optimize your solar power experience. Let’s explore these features in detail:
Unleashing Solar Power: Efficient Energy Harvesting
The Sunsynk 5kW comes equipped with built-in Maximum Power Point Tracking (MPPT) solar charge controllers. These intelligent controllers ensure your solar panels operate at their optimal efficiency, maximizing the amount of usable energy extracted from sunlight.
Here’s a simplified explanation: Solar panel output can fluctuate depending on factors like temperature and sunlight intensity. MPPT constantly monitors these conditions and adjusts the system to ensure your panels operate at their “peak power point,” maximizing power generation.
Grid-Tie Capabilities: Selling Excess Power Back to the Grid
The Sunsynk 5kW hybrid inverter boasts grid-tie functionality. This means your system can seamlessly connect to the utility grid i.e. Eskom. During periods of high solar production and low energy consumption, any excess electricity your system generates gets fed back into the grid. Many utility companies offer net metering programs, which essentially credit your account for the power you contribute. This credit can then be used to offset the electricity you draw from the grid at night or on cloudy days, potentially reducing your electricity bills significantly.
Here’s an example: Imagine your solar system generates 10kWh of electricity on a sunny day, but your household only consumes 5kWh. The remaining 5kWh of excess power would be sent back to the grid through the Sunsynk inverter. Depending on your net metering program, you might receive a credit for those 5kWh, reducing your overall electricity bill.
Self-Consumption Optimization: Maximize Solar Use Before Grid Reliance
The Sunsynk 5kW prioritizes using your self-generated solar energy before drawing power from the grid. This feature, known as self-consumption optimization, helps you maximize the use of your solar power system and reduce reliance on the utility grid.
The inverter intelligently manages your system’s power flow, directing solar energy to your home’s appliances first. Only when your solar production is insufficient or during nighttime hours would the system automatically switch to drawing power from the grid.
Generator Support: Backup Power for Peace of Mind
The Sunsynk 5kW hybrid inverter offers optional generator support. This functionality allows you to integrate a backup generator with your solar power system. In the event of a power outage or extended periods of low sunlight, the generator can automatically kick in and provide your home with electricity.
Important Note: Adding generator support might require additional equipment and configuration. Consult with a qualified solar installer to discuss your specific needs and ensure proper integration.
Remote Monitoring: Keep an Eye on Your System’s Health
The Sunsynk 5kW offers optional remote monitoring capabilities. By adding a separate data logger (sold separately), you can access real-time data about your system’s performance from anywhere with an internet connection. This allows you to:
Monitor solar energy production
Track your power consumption
View battery health and status
Identify potential issues and troubleshoot problems
User-Friendly Design: Simple Setup and Operation
The Sunsynk 5kW is renowned for its user-friendly design. This makes it a great choice for homeowners who are new to solar power systems. The inverter boasts a clear and intuitive interface, simplifying setup and operation. Detailed manuals and readily available online resources further enhance the user experience. You can also message us directly and we’ll help you out.
Benefits of Owning a Sunsynk 5kW Hybrid Inverter
Integrating a Sunsynk 5kW hybrid inverter into your home solar power system offers a multitude of benefits:
Reduced Electricity Bills: By harnessing the power of the sun and potentially utilizing net metering programs, you can significantly reduce your reliance on the grid, leading to lower electricity bills.
Increased Energy Independence: A solar power system with battery backup capabilities (optional) empowers you to take greater control of your energy needs, minimizing dependence on the utility grid.
Environmentally Friendly Choice: Solar energy is a clean and renewable resource. By switching to solar power, you contribute to a greener future by reducing your carbon footprint.
Potential Financial Incentives: Many government programs offer rebates and tax credits to encourage homeowners to adopt solar power. These incentives can significantly reduce the upfront cost of your solar system.
Peace of Mind with Backup Power (Optional): The optional generator support feature ensures you have a reliable backup power source during outages, providing peace of mind and uninterrupted electricity.
Sunsynk 5kW Hybrid Inverter: Ideal Applications
The Sunsynk 5kW hybrid inverter is a versatile solution for various solar power applications:
Residential Solar Power Systems: With a 5kW power output, the Sunsynk 5kW is ideally suited for powering small to medium-sized homes. This capacity can generate enough clean energy to meet the daily electricity needs of many households.
Off-Grid or Backup Power Applications: The hybrid functionality, coupled with optional battery storage, makes the Sunsynk 5kW a compelling option for off-grid living or situations requiring backup power capabilities.
Compatibility Considerations: Choosing the Right Batteries and Solar Panels
To ensure optimal performance and seamless integration with your Sunsynk 5kW hybrid inverter, compatibility plays a crucial role.
Here’s a breakdown of key considerations:
Battery Compatibility: Seamless Integration for Optimal Performance
The Sunsynk 5kW boasts wide-ranging battery compatibility. It can work with various battery brands and chemistries, including:
Lead-Acid Batteries: A traditional and cost-effective option, though lifespan and performance may be lower compared to lithium-ion batteries.
Lithium-Ion Batteries: Offer longer lifespan, higher efficiency, and deeper discharge capabilities compared to lead-acid batteries, but typically come at a higher initial cost.
Important Note: Always consult the Sunsynk 5kW manual and compatibility list to ensure you choose batteries specifically designed for use with this inverter model. Using incompatible batteries can compromise system performance and safety.
Lead-Acid vs. Lithium-Ion Batteries: Weighing the Options
Here’s a quick comparison to help you decide between lead-acid and lithium-ion batteries for your Sunsynk 5kW system:
Feature
Lead-Acid Batteries
Lithium-Ion Batteries
Cost
Lower upfront cost
Higher upfront cost
Lifespan
Shorter lifespan (3-5 years)
Longer lifespan (10+ years)
Efficiency
Lower efficiency
Higher efficiency
Depth of Discharge (DoD)
Limited DoD (typically 50%)
Deeper DoD (typically 80-100%)
Maintenance
Requires regular maintenance
Requires minimal maintenance
Environmental Impact
Less environmentally friendly
More environmentally friendly
Choosing the right battery type depends on your budget, desired performance, and long-term goals. For a budget-conscious option, lead-acid batteries might suffice. However, if you prioritize longevity, efficiency, and deeper discharge capabilities, lithium-ion batteries are a better long-term investment.
Solar Panel Compatibility: Matching Power Output for Efficiency
The Sunsynk 5kW inverter has a maximum DC input of 6.5kW. This means your solar panel array’s total DC power output should ideally fall within this range for optimal performance. Here’s how to ensure compatibility:
Check Your Solar Panels’ Wattage: Each solar panel has a specific wattage rating indicating its power output under standard test conditions.
Calculate Your Total System Wattage: Add up the individual wattages of all the solar panels you plan to install.
Ensure Compatibility: The total DC power output of your solar panel array should not exceed the Sunsynk 5kW inverter’s maximum DC input of 6.5kW.
Consulting with a qualified solar installer is highly recommended when selecting solar panels for your Sunsynk 5kW system. They can help you choose panels with the appropriate wattage and ensure compatibility with your inverter, maximizing your system’s efficiency.
Installation and Setup: Powering Up Your Sunsynk 5kW Hybrid Inverter
Installing a solar power system requires expertise and adherence to safety regulations. Here’s a basic overview of the process:
Finding a Qualified Solar Installer: Expert Guidance for a Smooth Process
The best approach is to partner with a reputable and experienced solar installer. They will handle the entire installation process, ensuring everything is done correctly and according to safety standards. Look for installers who are certified to work with Sunsynk inverters and have a proven track record of successful solar system installations.
Here are some tips for finding a qualified solar installer:
Get quotes from multiple installers: This allows you to compare pricing and services offered by different companies.
Check online reviews and testimonials: Read what other customers have to say about the installer’s work ethic and quality of service.
Ask for references: Contact past clients of the installer to get firsthand feedback about their experience.
Ensure proper licensing and certifications: Make sure the installer holds the necessary licenses and certifications to operate in your area and work with Sunsynk inverters.
Installation Overview: What to Expect During the Setup
The solar installation process typically involves several steps:
Site Assessment: The installer will visit your property to assess factors like roof suitability, sun exposure, and your overall electricity needs.
System Design: Based on the site assessment, the installer will design a solar power system tailored to your specific requirements. This includes selecting the appropriate number of solar panels and ensuring compatibility with the Sunsynk 5kW inverter.
Permitting and Inspections: The installer will handle the necessary
Sunsynk 5kW Hybrid Inverter: Essential Features Explained
The Sunsynk 5kW hybrid inverter boasts a range of features designed to optimize your solar power experience. Let’s delve deeper into some of these key functionalities:
MPPT Solar Charge Controller: Optimizing Solar Energy Production
As mentioned earlier, the Sunsynk 5kW comes equipped with built-in Maximum Power Point Tracking (MPPT) solar charge controllers. These intelligent controllers play a crucial role in maximizing the amount of usable energy you harvest from your solar panels.
Here’s a more technical explanation: The electrical output of a solar panel fluctuates throughout the day based on factors like sunlight intensity and temperature. MPPT technology constantly monitors these variables and adjusts the electrical input from the solar panels to ensure they operate at their maximum power point (MPP). This MPP is the point where the solar panel produces the most power for a given amount of sunlight.
By continuously tracking and adjusting the input, MPPT controllers significantly improve the overall efficiency of your solar power system, ensuring you extract the most power possible from your solar panels.
Single-Phase Power Output: Ideal for Most Homes
The Sunsynk 5kW inverter delivers single-phase power output. This aligns with the electrical grid configuration for most residential homes. Single-phase power refers to a system with two wires: a hot wire carrying the alternating current (AC) electricity and a neutral wire completing the circuit. The 5kW output capacity is sufficient to power the electrical needs of many small to medium-sized homes.
Important Note: If your home has a three-phase electrical grid configuration, a different inverter model might be required. Consult with a qualified solar installer to determine the appropriate inverter for your specific setup.
Grid-Tied Functionality: Seamless Integration with the Utility Grid
As discussed previously, the Sunsynk 5kW boasts grid-tie functionality. This allows your solar power system to seamlessly connect to the utility grid. Here’s a breakdown of the benefits:
Excess Power Back to the Grid: During periods of high solar production and low energy consumption, any surplus electricity your system generates gets fed back into the grid. Many utility companies offer net metering programs, which essentially credit your account for the power you contribute. These credits can then be used to offset the electricity you draw from the grid at night or on cloudy days.
Power During Outages (Optional Generator Support): In some configurations, the Sunsynk 5kW can integrate with a backup generator. During a power outage, the inverter can automatically switch to the generator, ensuring your home has continued access to electricity.
IP65 Rated Enclosure: Built to Withstand Harsh Environments
The Sunsynk 5kW inverter features an IP65 rated enclosure. This rating signifies the inverter’s ability to withstand dust and water ingress. Here’s a breakdown of the IP code:
IP: stands for International Protection Marking
First Digit (6): Indicates the level of dust protection. In this case, 6 signifies complete protection against dust particles.
Second Digit (5): Represents the level of water protection. A rating of 5 indicates the inverter can withstand water jets from any direction.
An IP65 rating ensures the Sunsynk 5kW inverter is well-protected from the elements, making it suitable for outdoor installations.
Mobile App Monitoring (Optional): Convenient System Management
The Sunsynk 5kW offers optional mobile app monitoring capabilities. By adding a separate data logger (sold separately), you can access real-time data and manage your solar power system from anywhere with an internet connection through a user-friendly mobile app. This allows you to:
Monitor solar energy production: Track how much electricity your solar panels are generating in real-time.
Track power consumption: Gain insights into your home’s overall energy usage.
View battery health and status: Monitor the health and performance of your battery system (if applicable).
Identify potential issues: The app might alert you to any potential problems with your system, allowing for prompt troubleshooting.
Mobile app monitoring provides a convenient way to stay informed about your solar power system’s performance and take proactive measures to optimize its operation.
Safety Considerations When Using a Sunsynk 5kW Hybrid Inverter
Safety is paramount when dealing with electrical systems. Here are some key considerations when using a Sunsynk 5kW hybrid inverter:
Prioritizing Safety: Always follow the installation and operation guidelines outlined in the Sunsynk 5kW inverter’s manual. These guidelines are designed to ensure safe and proper system operation.
Understanding System Components and Potential Risks: Familiarize yourself with the different components of your solar power system, including the inverter.
Sunsynk 5kW Hybrid Inverter: A Look at the Numbers (Costs, Efficiency, etc.)
Now that you’ve explored the features and functionalities of the Sunsynk 5kW hybrid inverter, let’s delve into some numbers to help you make an informed decision:
Cost Considerations: Breakdown of Inverter Pricing and Installation
Inverter Cost: The upfront cost of the Sunsynk 5kW hybrid inverter itself can vary depending on factors like location, retailer, and any ongoing promotions. A ballpark figure typically falls within the range of R20 000 – R22 000.
Installation Costs: The installation process typically involves labor costs, permits, and additional electrical components. Installation costs can vary significantly depending on your location, the complexity of the system design, and the chosen installer. Expect a range of $3,000 to $6,000 USD for installation, though this can be higher or lower depending on the specifics of your project.
Batteries (Optional): If you opt for battery storage for off-grid or backup power capabilities, battery costs will add to the overall system expense. Lead-acid battery banks might start around $1,000 USD, while lithium-ion battery systems can range from $3,000 USD to $10,000 USD or more, depending on capacity.
Understanding Inverter Efficiency: Maximizing Solar Energy Output
The Sunsynk 5kW boasts a maximum efficiency rating of around 98%. This translates to minimal energy loss during the conversion process from DC (direct current) generated by your solar panels to AC (alternating current) used in your home. A higher inverter efficiency signifies less wasted energy, maximizing the amount of usable power you harvest from your solar panels.
Return on Investment (ROI): Calculating Potential Savings
Calculating your exact return on investment (ROI) for a solar power system with a Sunsynk 5kW inverter depends on several factors, including:
Upfront system cost: This includes the inverter, solar panels, installation, and any optional batteries.
Local electricity rates: The higher your electricity costs, the faster you’ll see a return on your investment through reduced electricity bills.
Government incentives: Many regions offer rebates, tax credits, or other financial incentives for installing solar power systems. These incentives can significantly reduce your upfront costs and improve your ROI.
Solar energy production: The amount of electricity your solar panels generate will directly impact your energy bill savings. Factors like sunlight hours in your location and the size of your solar panel array will influence this.
While calculating a precise ROI can vary, estimates suggest a payback period for solar power systems with battery backup (depending on battery type) can range from 5 to 10 years. Following that initial period, you can expect significant savings on your electricity bills for many years to come.
It’s important to remember that a solar power system is a long-term investment. While the upfront costs might seem significant, the potential for substantial electricity bill savings over the lifespan of the system, coupled with environmental benefits, makes it a compelling choice for many homeowners.
Sunsynk 5kW Hybrid Inverter vs. The Competition: Exploring Alternatives
The Sunsynk 5kW hybrid inverter is a popular choice, but it’s not the only option on the market. Here’s a brief comparison with some well-known competitors:
Deye 5kW Hybrid Inverter: A strong contender with similar features and functionalities to the Sunsynk 5kW. It may offer a slightly lower price point in some regions. Consider factors like warranty terms, customer support, and ease of use when comparing these two inverters.
Growatt SPH 5000 Hybrid Inverter: Another comparable option with a focus on user-friendly design and efficient operation. It might be worth exploring if you prioritize a straightforward user experience.
Schneider Electric X-Hybrid Inverter: A premium option from a renowned brand, known for its high efficiency and advanced features. This inverter might be suitable if you’re looking for a top-of-the-line solution and are willing to pay a higher price tag.
The best inverter for you depends on your specific needs and budget. Carefully evaluate your requirements, compare features offered by different inverters, and consult with qualified solar installers to determine the most suitable option for your solar power system.
Frequently Asked Questions: Answers to Your Sunsynk 5kW Inquiries
Here are some of the most commonly asked questions regarding the Sunsynk 5kW hybrid inverter:
How many panels for a 5kW Sunsynk inverter?
The ideal number of solar panels for your Sunsynk 5kW inverter depends on the wattage of each individual panel. Here’s how to determine the appropriate number:
Check Solar Panel Wattage: Each solar panel has a specific wattage rating, typically ranging from 250 watts to 500 watts or more. Find the wattage rating of the solar panels you’re considering.
Calculate Total System Wattage: Divide the Sunsynk 5kW inverter’s capacity (5,000 watts) by the individual solar panel wattage. For example, if you’re considering 400-watt solar panels, divide 5,000 watts by 400 watts/panel, which equals 12.5 panels.
Adjust for System Design: The result you obtained in step 2 is a theoretical number. In reality, some power loss occurs during system operation. To account for this, most solar installers recommend using slightly fewer panels than the calculated number. A typical derating factor might be around 10%. In this example, you might install 11 or 12 panels instead of the calculated 12.5 panels.
It’s crucial to consult with a qualified solar installer to determine the exact number of solar panels required for your specific system design, considering factors like roof space, sunlight exposure, and your desired level of electricity generation.
Are Sunsynk inverters any good?
Sunsynk inverters, including the 5kW hybrid model, are generally well-regarded for their:
Reliability and Efficiency: Sunsynk inverters boast high efficiency ratings and a reputation for reliable operation.
Wide Range of Features: The 5kW hybrid inverter offers features like MPPT solar charge control, grid-tie functionality, and optional generator support.
User-Friendly Design: The inverter is known for its clear interface and ease of use.
Competitive Pricing: Sunsynk inverters offer good value for their feature set compared to some competitors.
However, it’s always wise to compare features and pricing with other inverter options before making a final decision.
Is Sunsynk better than Victron?
Both Sunsynk and Victron are reputable brands offering high-quality solar inverters. Choosing between them depends on your specific needs and priorities.
Here’s a quick comparison:
Sunsynk: Might be a more budget-friendly option with a user-friendly design.
Victron: Known for its advanced features and programmability, potentially ideal for more complex system configurations.
It’s recommended to research both brands and consult with a solar installer to determine which inverter best suits your specific requirements.
Embracing a Solar-Powered Future with the Sunsynk 5kW Hybrid Inverter
The Sunsynk 5kW hybrid inverter presents a compelling option for homeowners looking to harness the power of the sun and take control of their energy needs. With its efficient operation, grid-tie capabilities, and optional battery backup potential, this inverter can significantly reduce your reliance on the utility grid and contribute to a greener future.
By carefully considering the information presented in this comprehensive guide, you can make an informed decision about whether the Sunsynk 5kW hybrid inverter is the right fit for your solar power aspirations.
Remember to consult with us, your qualified solar installers to discuss your specific requirements and design a solar power system tailored to your needs. Embrace the power of the sun and embark on a journey towards energy independence!
Before you buy an inverter, it’s important to understand how much power you need to run your electrical appliances like your TV, lights, satellite, and fridge. This will help you determine the size of inverter you need and how many batteries to use.
To calculate your power requirements, add up the power consumed by each appliance you want to run during a power outage.
For example, if you want to run 3 fans, 3 tube lights, 1 CFL, and 1 television, your total power requirement would be (370 + 360 + 25 + 120) = 535 watts.
What are the factors to be considered when selecting an inverter?
How do I know what size inverter to buy?
Determining the VA Rating of the Inverter You Need
The VA rating, or volt-ampere rating, is the voltage and current supplied by the inverter to your appliances. Inverters typically have an efficiency range of 60-80%, which is also known as the power factor. The power supplied by the inverter, or the VA rating, is equal to the power required by the appliances divided by the power factor.
Using an average power factor of 0.7, the power of the inverter you need would be 765 VA (535 watts / 0.7). In the market, you can find 800 VA inverters, so that would be a good choice for your home.
Knowing the Battery Your Inverter Needs
How much inverter capacity do I need for my home?
The battery is an essential part of an inverter system, and the performance and lifespan of the inverter depend on the battery quality. The battery capacity, measured in ampere-hours (AH), determines how long the inverter will power your appliances.
To calculate the battery capacity you need, use the following formula:
Battery capacity = Power requirement (in watts) x Duration (in hours) / Battery voltage (in volts)
For example, if you want to run the appliances listed above for 3 hours during a power outage, you would need a battery with a capacity of 130 AH (535 watts x 3 hours / 12 volts).
Choose a ready-made kit based on your house size. Chat to us when you’re ready.
How to Choose the Right Inverter for Your Needs – Quick Guide
Step #1 Determine Your Power Requirements
The first step in selecting an inverter is to figure out how much power you need. This will depend on the appliances and tools you want to run during a power outage.
To determine your power requirements, you’ll need to know the wattage or current (in amps) of each item. This information can usually be found on the appliance or in the manual. Check online or or the manufacturing website.
If you can’t find this information, you can contact the appliance supplier to ask. It’s important to know both the continuous rating (in watts or amps) and the peak/surge rating (in watts or amps) of each item.
There are different brands – what matters are your needs. Calculate your power requirementsChoosing a ready-made kit for homes or offices is a great solution.
Convert Amps to Watts
To convert amps to watts, use this formula: watts = amps x voltage. For example, if you have an appliance that uses 5 amps and is plugged into a 120-volt outlet, the wattage would be 5 amps x 120 volts = 600 watts.
Calculate the Startup Load (Peak/Surge Watts)
Many appliances, particularly those with induction motors (such as air conditioners, refrigerators, and pumps), have a higher peak/surge wattage when they start up.
To figure out the startup load for an appliance, multiply the continuous wattage by 3. Find the continuous wattage online by searching for your appliance name.
For example, if an appliance has a continuous wattage of 500 watts, the peak/surge wattage would be approximately 500 watts x 3 = 1500 watts.
Consider Sinewave Output Inverters
These can have either modified sinewave (squarewave) or pure sinewave output. Pure sinewave inverters produce a cleaner, more stable power supply and are compatible with all appliances. Modified sinewave inverters are less expensive, but may not work with certain appliances and can produce interference with some electronics.
Compare Inverter Sizes and Prices
Once you know your power requirements, you can compare the sizes and prices of different inverters to find the one that best meets your needs. Be sure to consider both the continuous rating and the peak/surge rating when selecting an inverter. It’s also a good idea to choose an inverter with a higher continuous rating than you need, to allow for a safety margin.
Look for Quality and Durability
When shopping for an inverter, it’s important to consider the quality of the product and the reputation of the manufacturer. Look for an inverter with a long warranty period, as this can be an indication of the manufacturer’s confidence in the product. It’s also a good idea to research the company’s history and read customer reviews to get an idea of the level of service you can expect.
Consider the Size and Weight of the Solar Inverter
The physical size and weight of the inverter will be a factor if you need to transport it or have limited space to store it. Make sure you have enough room to install the inverter and that it is not too heavy for you to handle.
Check for Safety Features
Make sure the solar inverter you choose has safety features such as overload protection, overvoltage protection, and temperature control. These features will help ensure the inverter operates safely and reliably.
About us
Ready to go solar? Caprica Solar is South Africa’s Number 1 Solar Energy Store. Contact us for all your solar needs or shop with us for solar inverters, batteries and solar kits.
So you want to go solar, but can’t decide between Lithium Iron Solar Batteries and Lead Acid Batteries. What’s the big deal?
Lithium Iron vs Lead acid batteries? In this post, we’ll discuss the difference between the two solar batteries:
Small size and lightweight
Battery usable capacity
Long cycle life
Lifepo4 is safer than lead acid:
Lead-acid batteries
Lifepo4 battery characteristics
So you have heard of Lithium Iron phosphate (lifepo4 or LFP) batteries and are wondering whether they are worth the rage and raving?
Here are a few differences between lead acid batteries and lithium phosphate batteries to help you make a decision.
Lithium Solar Batteries Are Small in size and lightweight
Lead acid batteries take up more space than lithium iron phosphate batteries and when are mote difficult to wire up when you are connecting a large bank. The combined weight and volume occupied by lead acid batteries in a bank greater than a lifepo4 of equivalent capacity.
Solar Battery usable capacity
Below we can see that only a specific percentage of the battery can be used. We call this the Depth of discharge.
So a 100ah Lead acid is only 50-60% usable. Meaning it can be dropped to 40 or 50%.
Maximum daily depth of discharge (DoD) allowed **
Lithium-iron Phosphate = 80 to 90%
Lead-acid AGM = 15 to 30%
Lead-acid Gel = 20 to 40%
Lithium Solar Batteries Have a Long cycle life
Lithium battery cycle life can be over 5000 times, which means a 10 to 20 year service life but the traditional lead-acid battery can be less than 1000 times which means 3 to 5 years.
A Lithium Iron battery is more efficient with energy when it uses it to charge or when it is running a load and therefore discharging. It is 90% efficient that a lead acid which is 70% efficient.
Lithium Solar Batteries / Lifepo4 are safer than lead acid
Lead-acid batteries contain heavy metals such as lead which is dangerous to the environment and wildlife. The battery will leak over time. Sulphuric acid Leaks may cause equipment corrosion and personal injury. Lithium iron phosphate batteries are safer as they do not contain any heavy metals and are non-toxic. The battery does not explode or ignite when punctured, overcharged or short circuited.
Lead-acid batteries
The lead-acid battery does not fare well on demanding loads and grows weaker if the demands are constantly high.
The battery is prone to self discharge when idle and can end up useless.
It has problems in low-temperatures due to electrolytes freezing. The chemical reaction needed to create lead oxide cannot occur.
The performance is greatly reduced over time.
The batteries has fewer cycles and can not be charged and discharged indefinitely.
Risk of explosion whem being overcharged.
Leakages of acid and discharging of fumes or vapours.
Short life span and low durability.
Lithium Solar Batteries/ Lifepo4 battery characteristics
The battery can be charged and discharged at any time.
The battery self-discharge is low, monthly self-discharge is less than 1%, the battery can be stored for a long time without discharging substantially.
Uses a BMS system to charge and equalise batteries so they charge at an equal rate. Lead acid bayteries do not charge equally on most inverters and this damages them even when when they are not used much.
Fast charging. Charges at a faster and higher rate than lead acid batteries.
Discharge is more stable and does not drop in the way that a lead acid drops when it reaches certain voltages.
Lead acid battery technology is still improving and so we have not seen the end of lead acid batteries yet nor are we saying that LiFePo4 is the peak of battery technology. There is more to come. Lithium Iron batteries remain the most affordable batteries and value for money from an investment point. They are used by manufactures of electric cars all over the world including Tesla automobiles.
Take a look at our range of Lithium Iron batteries by clicking shop on our menu.
The two types of charge controllers most commonly used in today’s solar power systems are pulse width modulation (PWM) and maximum power point tracking (MPPT). Both adjust charging rates depending on the battery’s charge level to allow charging closer to the battery’s maximum capacity as well as monitor battery temperature to prevent overheating.
PWM solar charge controller
► Comparing the Two
If maximizing charging capacity were the only factor considered when specifying a solar controller, everyone would use a MPPT controller. But the two technologies are different, each with it’s own advantages. The decision depends on site conditions, system components, size of array and load, and finally the cost for a particular solar power system.
► Temperature Conditions
An MPPT controller is better suited for colder conditions. As solar module operating temperature goes down, the Vmp1 increases. That’s because the voltage of the solar panels operating at their peak power point at Standard Testing Conditions (STC is 25C°) is about 17V while the battery voltage is about 13.5V. The MPPT controller is able to capture the excess module voltage to charge the batteries. As a result, a MPPT controller in cool conditions can produce up to 20 – 25% more charging than a PWM controller.
In comparison, a PWM controller is unable to capture excess voltage because the pulse width modulation technology charges at the same voltage as the battery. However, when solar panels are deployed in warm or hot climates, their Vmp decreases, and the peak power point operates at a voltage that is closer to the voltage of a 12V battery. There is no excess voltage to be transferred to the battery making the MPPT controller unnecessary and negating the advantage of an MPPT over a PWM.
Ipanda_power_factory_Lcd_Led_48v_mppt
► Array to Load Ratio
In a scenario where the solar array is large relative to the power draw from the batteries by the load, the batteries will stay close to a full state of charge. A PWM controller is capable of efficiently maintaining the system without the added expense of an MPPT controller.
► Size of the System
Low power systems are better suited to a PWM controller because:
A PWM controller operates at a relatively constant harvesting efficiency regardless of the size of the array
A PWM controller is less expensive that a MPPT, so is a more economical choice for a small system
A MPPT controller is much less efficient in low power applications. Systems 170W or higher tickle the MPPT’s sweet spot
► Type of Solar Module Stand-alone off-grid solar modules are typically 36-cell modules and are compatible with both PWM and MPPT technologies. Some grid-tie solar modules on the market today are not the traditional 36-cells modules that are used for off-grid power systems. For example, the voltage from a 60-cell 250W panel is too high for 12-Volt battery charging, and too low for 24-Volt battery charging. MPPT technology tracks the maximum power point (thus MPPT) of these less expensive grid-tie modules in order to charge the batteries, whereas PWM does not.
► Cost MPPT controllers are typically more expensive than PWM’s but are more efficient under certain conditions, so they can produce more power with the same number of solar modules than a PWM controller. One must then analyze the site to verify that the MPPT can indeed perform more efficiently when used in that system’s given set of conditions.
When specifying one technology over the other, the cost of the controller becomes less important than the total cost of the system. To specify a controller technology simply based of cost, be sure to perform a close analysis of realized efficiencies, system operation, load and site conditions.
SUMMARY OF COMPARISON
PWM Charge Controller
MPPT Charge Controller
Array Voltage
PV array & battery voltages should match
PV array voltage can be higher than battery voltage
Battery Voltage
Operates at battery voltage so it performs well in warm temperatures and when the battery is almost full
Operates above battery voltage so it is can provide “boost” in cold temperatures and when the battery is low.
System Size
Typically recommended for use in smaller systems where MPPT benefits are minimal
≈ 150W – 200W or higher to take advantage of MPPT benefits
Off-Grid or Grid-Tie
Must use off-grid PV modules typically with Vmp ≈ 17 to 18 Volts for every 12V nominal battery voltage
Enables the use of lower cost/grid-tie PV Modules helping bring down the overall PV system cost
Array Sizing Method
PV array sized in Amps (based on current produced when PV array is operating at battery voltage)
PV array sized in Watts (based on the Controller Max. Charging Current x Battery Voltage)
________________________
1 The Vmp (maximum power voltage) is the voltage where the product of the output current and output voltage (amps * volts) is greatest and output power (watts = amps * volts) is maximized. Module wattage ratings (e.g. 100W, 205W) are based on Pmp (maximum power) at Vmp under standard test conditions (STC).
Set the digital multimeter (DMM) to measure frequency. The steps can vary by meter. Usually a multimeter’s dial will be turned to dc V () and the Hz button is pressed. The DMM is ready to measure duty cycle when a percent sign (%) appears in the right side of the multimeter’s display.
First insert the black test lead into the COM jack.
Then insert the red lead into the V Ω jack. When finished, remove the leads in reverse order: red first, then black.
Connect the test leads to the circuit to be tested.
Read the measurement in the display. A positive symbol (+) indicates POSITIVE time percent voltage measurement. A negative symbol (-) indicates NEGATIVE time percent voltage measurement.Note: A positive reading typically indicates a circuit’s ON time and a negative reading its OFF time. On occasion a negative portion of the signal can create an ON signal.
Press the beeper button () to toggle between POSITIVE time and NEGATIVE time percent voltage measurement. Note: The button used varies by digital multimeter. Refer to you model’s user manual for specific instructions.
Duty cycle basics
Duty cycle is the ratio of time a load or circuit is ON to the time a load or circuit is OFF. A load that is turned ON and OFF several times per second has a duty cycle.
Why do this? Many loads are rapidly cycled on and off by a fast-acting electronic switch to accurately control output power at the load. Lamp brightness, heating element outputs and magnetic strength of a coil can be controlled by duty cycle.
Duty cycle is measured in percentage of ON time. Example: A 60% duty cycle is a signal that is on 60% of the time and off 40% of the time.
An alternate way to measure duty cycle is dwell, measured in degrees instead of percent.
When measuring duty cycle, a digital multimeter displays the amount of time the input signal is above or below a fixed trigger level – the fixed level at which the multimeter counter is triggered to record frequency. Slope is the waveform edge on which the trigger level is selected.
The percent of time above the trigger level is displayed if the positive trigger slope is selected. Conversely, the percent of time below the trigger level is displayed if the negative trigger slope is selected. The slope selected is indicated by a positive (+) or negative (-) symbol in the display. Most multimeters default to display the positive trigger slope; the negative trigger slope is usually selected by pressing an additional button. Refer to a DMM’s user manual for specifics.
There are three main types of photovoltaic solar panels for both commercial and residential use.
They are:
Monocrystalline
Polycrystalline
Amorphous Silicon also called “Thin Film”
All three types of solar panels have both advantages and disadvantages depending on the end user’s budget, the size and type of environment where they are used and the expected output of the system to name a few.
Monocrystalline Photovoltaic Solar Panel
Made from a large crystal of silicon. Monocrystalline solar panels are the most efficient and most expensive panels currently available. Because of their high efficiency, they are often used in applications where installation square footage is limited, giving the end user the maximum electrical output for the installation area available.
Polycrystalline Photovoltaic Solar Panel
Characterized by its shattered glass look because of the manufacturing process of using multiple silicon crystals, polycrystalline solar panels are the most commonly seen solar panels. A little less efficient than monocrystalline panels, but also less expensive.
Amorphous Silicon “Thin Film” Photovoltaic Solar Panel
These panels can be thin and flexible which is why they are commonly referred to as “Thin Film” solar panels. Amorphous silicin solar panels are common for building integrated photovoltaics (BIPV) applications because of their many application options and aesthetics. They are cheaper and are not effected by shading. Drawbacks are low efficiency, loss of wattage per sq. ft. installed and heat retention.
They can be manufactured using silicon, copper indium diselenide (CIS) or cadmium telluride (CdTe).
A car’s battery is designed to provide a very large amount of current for a short period of time. This surge of current is needed to turn the engine over during starting. Once the engine starts, the alternator provides all the power that the car needs, so a car battery may go through its entire life without ever being drained more than 20 percent of its total capacity. Used in this way, a car battery can last a number of years. To achieve a large amount of current, a car battery uses thin plates in order to increase its surface area. A deep cycle battery is designed to provide a steady amount of current over a long period of time. A deep cycle battery can provide a surge when needed, but nothing like the surge a car battery can. A deep cycle battery is also designed to be deeply discharged over and over again (something that would ruin a car battery very quickly). To accomplish this, a deep cycle battery uses thicker plates. Typically, a deep cycle battery will have two or three times the RC of a car battery, but will deliver one-half or threequarters the CCAs. In addition, a deep cycle battery can withstand several hundred total discharge/recharge cycles, while a car battery is not designed to be totally discharged.
One of the most important factors that you need to know before buying an inverter is how much power you need to run your electrical appliances such as your tv, lights, satellite or fridge. This will help you determine what size inverter to buy and how many batteries to bank.
Suppose you want 3 Fans, 3 Tube lights, 1 CFL & 1 television to operate at the time of power failure. Below is the power consumed by these items:
1 Fan – 70 Watts
1 tube light – 60 watts
1 CFL – 25 watts
1 Television – 120 watts
Therefore your total power requirement is ( 3*70 +3*60 + 25 + 120) = 535 watts
Find the VA rating of the inverter you need
It stands for the Volt ampere rating. It is the voltage and current supplied by the inverter to the equipments. If an inverter operates with 100% efficiency, then the power requirement of the electrical items and power supplied by inverter is same. But we all know that 100% or ideal conditions don’t exist in real. Most inverters have the efficiency range from 60 % to 80%. This efficiency is also called power factor of an inverter and is simply the ratio of power required by the appliances to power supplied by an inverter. Power factor of most inverters ranges from 0.6 to 0.8.
Hence Power supplied (or VA rating of inverter) = Power requirement ( power consumed by equipments in watts) / Power factor( efficiency).
Here average value of power factor or efficiency is considered i.e. 0.7
Power of inverter (VA) = 535/0.7 = 765 VA
In the market 800 VA inverters are available. So an inverter with 800 VA will be the right choice for your home.
Know the battery your inverter needs
Battery is the backbone of an inverter system. The performance and life of an inverter largely depend upon the battery quality. The next big question is how long will your batteries last? This is what we call the battery capacity. It is the battery capacity that decides how long your inverter will provide power to your appliances. Battery capacity is measured in AH which stands for Ampere Hours. Basically how many amperes will the battery discharge every hour of use. a 100AH battery with a discharge of 5 amps will last 20 hours.
This is how we determine how many batteries are needed:
Battery capacity = Power requirement (your load in watts) x Duration or runtime ( hours) / Battery Voltage (12v)
Therefore a battery with a capacity of 130 Ah will work for you.
So if you want to run 3 fans, 3 tube lights , 1 CFL and 1 TV for 3 hours during power failure you would need 800VA inverter and 130 Ah battery.
By understanding this simple calculation you not only save yourself from the misleading information shared by inverter dealers but also help yourself in taking correct decision.
Minimal corrosion thus physically compatible with sensitive electronic equipment
Installs upright or on side
Very low to no gassing (unless overcharged)
Superior shelf life when compared to Wet Cell
No recharge current limitation @ 13.8 volts
Rugged and vibration-resistant
Very safe at sea with no chlorine gas in bilge (due to sulfuric acid and salt water mixing)
Most versatile: Starting. Deep Cycle, Stationary
Lowest cost-per-month (cost / months of life)
Lowest cost-per-cycle (cost / life cycles)
Disadvantages
Higher initial cost
Water cannot be replaced if continually overcharged
Voltage-regulated chargers must be used
Charge voltage must be limited to extend life (13.5 to 13.8 volts maximum at 68°F)
—————————————————————————————
(AGM) ABSORBED ELECTROLYTE
Advantages
Ideal for standby or back-up applications
Higher charge and discharge currents
Totally maintenance-free
Air transportable
Spill proof/ Leak proof
Minimal corrosion thus physically compatible with sensitive electronic equipment
Installs upright or on side
Lower cost than gel cell batteries
Very low to no gassing (unless overcharged)
Excellent for starting and stationary applications
Superior for shorter duration/higher discharges
Disadvantages
½ the cycle life of Gel or flooded Wet Cell in deep cycle applications
Charge voltage must be limited (14.1 to 14.4 volts maximum at 68°F )
Voltage-regulated chargers must be used
Water cannot be replaced if continually overcharged
—————————————————————————————
WET CELL (FLOODED ELECTROLYTE)
Advantages
Lowest initial cost
Water can be added (if accessible)
Excellent for higher current applications
Certain designs are good for deep cycle applications
Replacements readily available
Disadvantages
Spillable
Operates upright only
Emits corrosive Gases and thus cannot be installed near sensitive electronic equipment
Cannot be installed near sensitive electronic equipment
Maintenance required (if accessible)
There is not one single battery that is suited for all applications or weather conditions. Instead an evaluation will help determine the battery that is best suited for the site conditions and application. Consult with Caprica Solarto ensure your system’s integrity and the safety of those who operate them.
Dear customers we do not do in store collections anymore except for aftersales services which are by appointment only. Please check availability of items before placing an order. Dismiss
) and the Hz button is pressed. The DMM is ready to measure duty cycle when a percent sign (%) appears in the right side of the multimeter’s display.
) to toggle between POSITIVE time and NEGATIVE time percent voltage measurement. Note: The button used varies by digital multimeter. Refer to you model’s user manual for specific instructions.
