Panels cost about 210/each for the new ones and the old ones were pretty much free. Inverter: the one upstairs is a new one, 500 Euros ('second chance'), three phase 4KW, the one downstairs is a monster, it's 17KW with up to six strings and cost another 500. The panels on the high roof were installed, about 1000 to do the job and the rest I did myself, add another 500 or so in cables, tubing etc. The power bill went from 8500 / year to 3500 / year, and all of that is the remaining gas usage. We're looking into using any surplus in nov/dec/jan/feb to help heat the house to further offset the gas usage but the economics aren't really there yet as far as I can see.
And even in November we are still offsetting about 75% of our electricity usage, which somewhat surprises me, I'd expected far worse.
You're welcome. I've done a bunch of these by now if you are ever in the market for a setup and want to bounce ideas of me then feel free to mail, email is in profile.
Panels cost about 210/each for the new ones and the old ones were pretty much free. Inverter: the one upstairs is a new one, 500 Euros ('second chance'), three phase 4KW, the one downstairs is a monster, it's 17KW with up to six strings and cost another 500. The panels on the high roof were installed, about 1000 to do the job and the rest I did myself, add another 500 or so in cables, tubing etc. The power bill went from 8500 / year to 3500 / year, and all of that is the remaining gas usage. We're looking into using any surplus in nov/dec/jan/feb to help heat the house to further offset the gas usage but the economics aren't really there yet as far as I can see.
And even in November we are still offsetting about 75% of our electricity usage, which somewhat surprises me, I'd expected far worse.