The one thing that off-grid battery systems cannot do is store up the DOUBLE solar energy available in the summer for use in the winter. As a result, the off-grid system has to be drastically overbuilt for the winter and has wasted energy (investment) in the summer..
Bummer about the new rates and connect fees! Bob On Sun, Mar 21, 2021 at 1:14 AM Peter VanDerWal via EV <[email protected]> wrote: > > Without NET metering, solar has to rely on > > batteries for energy storage and that triples the cost of the system > making > > it totally uneconomical. > > I'm not sure that's true anymore. PV prices are so cheap now that > trippling your array size today is now affordable. When I installed my > array 10 years ago PV prices were 5 times as much as they are now, so > installin g3x as many panels is STILL cheaper than what I paid. > Even adding batteries doesn't increase the price that much > An off-grid array today can produce as much energy for the same or lower > price than a grid-tied from 10 years ago. > > In fact I'm serious considering taking my house off grid because my power > company is increasing the connection fees for solar customers. Once they > finish implementing all of the price increases, I'll end up paying $65 just > for the priviledge of having a connection to the grid. They are also > changing the net metering from 1kwh in to 1kwh out at same price (basically > banking energy for free) to wholesale price for energy pushed to the grid > and retail price for energy pulled from the grid, basically I'll pay 10 > cents a kwh to bank energy. > > Switching to off-grid will cost me perhaps $7,000 more, but will save me > at least $900 a year. Less than 8 years to break even. > I have already purchased 12 more 315w PV panels and a 3kw off-grid > inverter-charger which will work with my existing micro-inverters using > AC-coupling. I'm looking for a LiIon battery pack from a wrecked EV now. > > My PGP public key: https://vanderwal.us/evdl_pgp.key > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210321/dfb3562c/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
