When it comes to getting the most out of your solar PV system, microinverters are becoming one of the more popular choices for UK homeowners. Unlike traditional string inverters, which convert solar energy from a group of panels, microinverters are installed directly behind each solar panel. Each panel works independently, maximising efficiency and minimising power loss caused by shading or mismatched panels.
Two of the biggest names in the microinverter market are Enphase and APsystems. Both offer innovative technology, reliable performance and long warranties – but which is the best option for your home?
What Are Microinverters?
A microinverter converts DC power from a single solar panel into usable AC power for your home. String inverters are limited in production to the weakest panel in the array, whereas a microinverter allows each panel to operate at its maximum potential.
Enphase Microinverters
Enphase is the market leader in microinverter technology. Enphase microinverters are reliable and durable and come with a 25-year manufacturer guarantee and a proven track record worldwide. The Enphase Enlighten app gives panel level monitoring, allowing you to see real time efficiency and generation of each panel. Enphase microinverters are also good if you plan to expand your system in the future. Unfortunately, due to being the market leader, Enphase microinverters do come with a higher price tag than alternatives. They also require Enphase specific components for full functionality.
APsystems Microinverters
APsystems is another big name in the microinverter market, offering innovative solutions with a focus on cost-effectiveness without compromising on performance. APsystems offer dual or quad microinverters that connect 2-4 panels each. Their EMA app (Energy Monitoring & Analysis) allows you to monitor your panels performance in real-time. APsystems microinverters are more affordable than Enphase microinverters and only offer a 20-year manufacturer warranty. Unlike Enphase microinverters, which require a Enphase solar battery, APsystems microinverters can be integrated with several solar battery options.
Which Microinverter is Best for You?
Both Enphase and APsystems offer excellent microinverter solutions, so which is best for you will depend on your priorities and budget.
- Enphase has the higher reliability, best monitoring and full integration with batteries and smart energy solutions. It’s ideal if you are looking for a premium, future-proofed system with maximum control.
- APsystems offers a solid performance at a lower cost. It’s perfect for homeowners who want the benefits of microinverters without the high price tag.
The SolarTherm UK Verdict
At SolarTherm UK, we install both Enphase and APsystems microinverters, tailoring the solution to your home and energy needs. Whether you are focused on cutting edge technology and monitoring or a cost-effective upgrade, both options will significantly improve your solar system’s efficiency compared to traditional string inverter.
Alternatively, if you would like the benefits of panel-level optimisation without the price tag of microinverters, you can consider a SolarEdge power optimised system. Check out our guide here.
Ready to Upgrade Your Solar PV System?
If you’re considering Enphase or APsystems microinverters for your home, or any other solar installation, contact SolarTherm UK today for a free bespoke design package, tailored for your property, energy usage and future energy needs. No hard sell, just honest, expert advice.
Your home. Your energy. Your future.
Frequently Asked Questions about Microinverters
What are microinverters for solar panels?
Microinverters are small devices fitted behind each solar panel. They convert DC power into AC power directly at the panel level, which means shading or underperformance on one panel won’t affect the rest of your solar array.
What’s the difference between Enphase and APsystems microinverters?
Enphase microinverters optimise each panel individually and come with advanced monitoring and battery integration. APsystems, on the other hand, connect to 2–4 panels per microinverter, offering strong performance at a lower cost.
Which is better: Enphase or APsystems?
Enphase is ideal if you want the very best performance, system reliability, and integration with home batteries. APsystems is a great choice if you’re looking for a cost-effective microinverter system that still delivers solid results.
Do microinverters work better than string inverters?
Yes — microinverters typically provide higher efficiency, especially if your panels are installed at different angles or suffer from shading. Each panel works independently, so you get more power from your system overall.
What warranty do Enphase and APsystems microinverters have?
Enphase microinverters come with a market-leading warranty of up to 25 years. APsystems microinverters usually come with up to 20 years of warranty, depending on the model.
