Guide to Best Solar Inverter: Enphase vs SolarEdge

What is an Inverter?

The main function of inverters is to convert the direct current (DC) into alternating current (AC), so all the appliances can use electricity. They are vital to the functionality of your solar system given the fact they have complex parts and software installed. Choosing panels and other materials is essential to choose the best type of inverter. There are 3 types of inverters:

1-String Inverters; Centralized

2-Power Optimizer System; String inverters + Power optimizers

3-Microinverters.

String inverters are the most popular option and are the best option, especially for bigger systems. However, options 2 and 3 have gained popularity in the market since their prices have fallen down in recent years. Listed below are the best two companies that manufacture inverters: Enphase and SolarEdge.

Michael Ross at Solar Side Up

enphase energy logo

Enphase Energy is a publicly held company based in Nothern California and it was founded in 2006. They manufacture batteries, inverters, and other accessories. Their inverters make the solar system more productive, reliable, smart, and safe for customers to use it. Inverters deliver optimized output in an elegant design that is very aesthetic and durable.

Solar Edge is becoming a popular choice in the USA due to its unique design. The company with headquarters in Israel was founded in 2006 and offers a wide range of inverters for residential and commercial use. The company offers PV Power Optimizers, PV Monitoring Portal, and Solar Inverters. They produce inverters that use power optimizers to maximize power generation from every single panel. Customers benefit the most from knowing they can have data from monitoring each panel so they can reduce the impact of shading and other performance issues.

Enphase vs Solar Edge

Comparing the Products
Micro Inverters + Envoy

Enphase is a system that uses micro-inverters that were first introduced to the world in June 2008. Those are tucked under each panel and they will convert the DC electricity to AC electricity. Besides the micro-inverters, the system has the Envoy system which is essentially its brain. Envoy will gather all the data from the micro-inverters and will deliver it to Enlighten software. Also, Envoy will report any issue related to how the micro-inverters are performing and will deliver updates.
Solar Edge Inverter

SolarEdge has a solar panel optimizer that is attached to each panel and all those are connected to one inverter. That means that if one of the panels is in shade, the rest of the modules are unaffected. The same is for Enphase but the difference is that SolarEdge sends the DC solar power to one inverter. On the other side, Enphase’s micro-inverters convert the DC to AC immediately at the roof.

What happens if the SolarEdge inverter or Enphase micro-inverter malfunctions?
Enphase and Solaredge dominate the high-end residential inverters market in the United States. Although, both offer a technology that isolates the performance and enables the monitoring of each individual panel, their modes of failure are quite different.

SolarEdge failure mode:
As we mentioned above, a SolarEdge system is composed of optimizers; one optimizer per solar panel, and a string inverter that centralizes the DC currents from the optimizers and converts them into an AC current. Most of the failures we noticed in SolarEdge installations happen at the inverter level which means that the entire system will cease to produce power until the inverter is fixed or replaced.

Of course, if the inverter is under warranty, this doesn’t mean that you are out of luck. Solar Side Up will make the necessary steps to get the problem fixed for our clients-provided that the inverter is still under manufacturer warranty-.

Enphase Micro-inverters failure mode:
Micro-inverters are installed for each panel and are non-centralized. This is an advantage over centralized or string inverters such as SMA, Fronius, or inverters with optimizers such as SolarEdge. If one micro-inverter malfunction, the other micro-inverters will keep producing power.

Enphase warranties the micro-inverters for 25 years. If any repair is required, your inverter will be replaced at no additional cost to our clients by our technicians.

Scalability – Enphase vs. SolarEdge
SolarEdge’s scalability is limited in comparison to Enphase micro-inverters. SolarEdge systems are limited to the size of the central inverter, which can intake a certain number of solar panels. Enphase micro-inverters have higher flexibility to scale by simply adding solar panels with compatible micro-inverters.

Scalability matters to clients who project an increase in their future power demand in case of adding an electric vehicle, or add a large battery backup system for example. Theoretically, you can add an unlimited number of panels (some modifications may be required of course) when you have a micro-inverter system but you may have to change the central inverter if you want to increase the number of solar panels.

The Solar Side Up Team

Jamie & Rachel know just how easy it is to go Solar with Solar Side Up.

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Solar Side Up LLC is a locally owned and operated company that quickly earned its place among the top 10 solar system installers in the state. We provide custom solutions to the unique energy needs of our customers in Colorado. Our solutions are always reliable, affordable, and utterly efficient. These factors make us the best solar panel company for you in the area.

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Michael Ross at Solar Side Up
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