My church is trying to install solar. A pretty sizeable install, around 30,000 watts. The install is on a single south facing roof that has no obstructions and no shadowing. We are interested in grid tie, and have no need for battery backup etc.

One installer, the front runner has convinced some of the committee that enphase micro inverters are the way to go. I countere...

I have to replace my inverter. After 5 years of good performance my 3000 watt Everexceed inverter isn't putting out like it used to. I don't think the batteries are a problem because I have a lot of electricity for what I am running at midday, though maybe it is a problem with the batteries. I have 3 groups of panels, 2000 watt, 800 watt and 750 watt. I have four 150ah batteries...

I recently installed a second Growatt SPF 5000 ES inverter to my system. After starting up the system my inverters for some reason doesn't want to close the last contact to supply voltage to the load.

I have perfect comms with the battery, solar panels and grid input. All settings between the 2 inverters are identical except the time settings.

These inverters w...

First let me explain my whole system so you can see the whole picture.
I have since 1983 had 2 4x8 solar hot water panels south facing on my roof is what's know to us old timers as a drain back system . That is when its gets cold or in my case nearly every night on a timer its drains down so it cannot freeze. This system is direct system meaning the water is in the copper tu...

Greetings, all!

I am putting together a ~10Kw grid-tied system and would like to understand which manufacturers have the best response to security disclosures, do not require Internet connections, and provide structured data for local monitoring. The warranties should also not prohibit work by the system owner, although it's understandable of liability is limited due to...