2 ms·
I just did some modelling with the help of claude (which can write 200LOC+ numpy code faster than I can) 300 Euros crappy setup, 600 euros mid-range setup, 120
by Kim_Bruning 1y ago
I just did some modelling with the help of claude (which can write 200LOC+ numpy code faster than I can)
300 Euros crappy setup, 600 euros mid-range setup, 1200 with storage. (Extra) regulations is zilch, it's legal to plug and play these things up to 800W nameplate capacity.
I went with numbers for mid-range, vertical south orientation and offsetting 200W (without battery, any overproduction is wasted). This nets you an avarage of €0.32 per day - With practically nothing in winter, and maybe up to €1 per day on a PARTICULARLY nice summer day.
But altogether, that still adds up to something like Eur 116 per year, so your midrange system earns itself back in 5-6 years.
Not great, not terrible. Nothing to write home about, but free money is free money.
- adrianN 1y agoMy 1kW southern facing setup produces a little less than three kWh a day, about 1000kWh a year. A have a battery too so I manage to use most of that energy myself.
- kragen 1y ago16–20% yearly return on investment is a hell of a lot better than the stock market.
- oceanplexian 1y agoI built one in Utah which is the only part of the US where it's currently legal, so I can give you the numbers. - 4x Hyundai 435W Solar Panels @ 167$ each for $670 total - 1x EcoFlow Stream Microinverter for $257. - Various cables, MC4 crimping kit, etc.. about $150 Grand total was $1077, I set them in direct sun on my patio and have generated 6-8kWh per day. At Utah energy prices (0.12 where I live), they will pay off in about 4 years. Somewhere like California with 4x the energy prices as here, it would probably pay for itself in <1 year.
- kragen 1y agoThat's fantastic! What's the microinverter's peak capacity?
- oceanplexian 1y ago1.2kW, the same as the max allowed by the H.B. 340 bill they passed.
- kragen 1y agoI see, thanks!