We'll call it lambda.

I went with simple micro-inverters (https://www.amazon.com/dp/B09N8T2741/) paired with some standard panels (https://www.amazon.com/dp/B0BRKK73QN/) Micro-inverters can't be used when doing a full off-grid system but they are great at reducing energy bills. Super easy install that required no change to my home's electric circuits.

Mine has been idling around 300-400 watts. I've recently been making some changes that have it running more than usual. I'm hoping in the next week I will get it back below 300 watt idle. With the space I have and the current cost of solar panels I basically offset the entire labs electric usage with about $800 worth of solar gear. So I haven't stressed too much about electric use.