AntronX

At 107W and COP of 3.5 at least 375W or 1280 BTU. But likely more since at slow speed and cool outside temps COP goes up. Good for...

I have Midea U 12K BTU ac that pulls 107 Watts on slowest speed and blows 57F air. Maximum input power at full blast is 1200 W.

Some small TVs and laptops will run on 10 - 14V direct. 4G router/modem will run on 12V LFP battery direct as well, no need for 12/12V...

Here's the critical post in that thread: "Hi @thanar, The maximum Isc (input short circuit current on the PV panels) is a limitation...

My have to sacrifice one cell to drilling depth experiment.

This pretty much what I do except I run lower heater direct from 48V DC (thermostat bypassed). 40 gal tank could store 6.2kWh of heat...

12 and 24v maybe. 48v is arcy sparky time.

Just my 2Cents: ANY Household Light Switches, which are made for 240V AC can switch at the same Ampere rating DC with 12V, 24V and 48V.

Yes it's certainly nice when it works just as predicted. I got this circuit idea from the creator of MiniBMS a while back at...

Short what to ground? Worst that can happen is transistor getting stuck on and discharging cell to zero unless caught in time.

From looking at those 2 bills it appears annual usage is 91,000 kWh. I looked at OPs roof and it looks like at least 84 * 400w panels...

With 1:1 net metering the reason to add batteries should depend on how reliable the electricity for the grid is. The issue with using...

Worked on first try. Helps that this was LTSpice tested design I made 10 years ago. After 10 minutes at 3.6V 0.42A transistor was at...

It's a big house with a pool. If you count per square foot then usage is reasonable.

Maybe they can get them offgrid like in Australia.

Generator is a good point. Would not want to live next door to one. But exactly how much power they consider enough for winter can get...

Try leaving small load on grid like a cable modem/router and a UPS.

What model MPPT ?

What are they powering? Could be inductive kickback.

Power company in Las Vegas (NV Energy) still offers 1:1 net metering so now is a good time to jump into solar and get grandfathered for...