Recent content by Adrian Cockcroft

What does the CAC report? I have OVMS to look it up and I get 163.6 CAC, it’s definitely not got the range it used to have after the 3.0 swap, but it’s still charging and driving ok. Mine was one of the earliest 3.0 upgrades. I keep it in storage mode most of the time, at 50-75% SOC.

New funding for Span who seem to be working on the general problem of integrating panels and batteries etc. Span raises $90M to make smart panels the gateway to home…

Thanks for the advice, and sharing your expertise. The eGauges (installed last Nov on both sides of the house) show how much backfeed comes from the panel that has solar, pool pumps etc. on it, and it's less than 20KW in practice, but if we had everything in the house turned off in the...

Thanks for the advice. I've talked to the vendor who installed my solar, who aren't Tesla distributors but do install batteries, and who put in eGauges so I can see the actual power flows. I've also talked to the local Tesla PW distributor who is going to visit this week. After waiting for over...

I'm surprised no-one else seems to have figured it out already... I think we're going to have 4 PW on the solar side, and 2 PW on the bedroom side. We get fairly frequent multi-hour outages, but if we get a multi-day outage, we can move to the guest house. Also, if in the future a 400A Tesla...

The Eaton circuit breakers look plausible, they have up to 50A, with a documented developer portal. Smart breakers Has anyone tried Eaton or something similar to shut off individual circuits during an outage?

Yes, over half the house load is on that panel, kitchen (all electric), pool pumps, living area, guest house, three of the four heat pumps.

The heat pumps cycle on and off to avoid freezing up when it gets cold, and are working hard to heat a large space with high ceilings and solid concrete slumpstone block walls (excellent for fire resistance, but not good for keeping warm). I got the biggest option I could find, and we've also...

That's very useful info, if I understand that correctly, I can use the contactor to trigger my home automation, and interface from there to reduce load and shut down circuits.

The Shelly.cloud switches look interesting, but I think I need connected circuit breakers that I can pop into the existing sub panels for a few key circuits. I have a home automation system that I can program to manage this, if I can figure out how to hook it up. I have Monterey Bay coastal...

OK, so the problem is that the solar is all on the other side of the property, on a 200A sub panel, and there's no easy way to run conduit to that side (no attic or subfloor and it's a long way). The main bedroom that I want to heat is on the side that doesn't have solar... thanks for clarifying...

We're at 600ft in the hills near Salinas, get plenty of sun, and I upgraded from 20KW to 30KW last year. Been there and done that and not doing it again. I have new heat pumps, and when its freezing outside they need help as my house is hard to heat. I have 4.5ton Mitsubishi and they have...

Thanks, that helps, so we'll have a gateway on each side, and probably 3 PW on each. How does that work for power sharing during an outage? Does each gateway connected bank of PW drain separately? I will only have solar on one side, so they need to be linked to recharge while off grid.

I have looked at other suppliers, they either can't stack enough batteries together to build a large installation, or the batteries themselves are physically bigger and need to be racked indoors. I need to have them outside to be near the main feed, and I need 6 powerwalls to give me enough...

I've got a "sprawling" single story house with a 400A feed and multiple sub-panels scattered around. We converted it to heat pumps for air and water a few years ago and have a large solar array connected to a 200A sub-panel on the far side of the house from the main feed. My main concern is that...