[hedora]

We have an enphase system with a solar array that's a bit under 10x that size. We paid about $60k (ignoring tax credit) in the bay area, and I think we overpaid.

We have about 2.5 watt hours of battery per watt of solar panel, which seems about right around here. (The battery is fully charged by the end of day about 95% of the time.)

Your quote has 6.6 Wh/W, and the PV bit is small, so fixed costs are also biting you.

Edit: we have electric heat, and you probably don't. Our worst case days are cold and cloudy, so perhaps the battery sizing makes sense, though if you want AC at night, you'll want enough solar panels to charge the battery and run the AC.

[petre]

You get about 6 hours of direct sunlight on the panels so his sizing is probably about right?

My dad gets about 6 kWh daily during the summer from an 1140 Wp PV array. 45° latitude, 1250 W/m² yearly insolation.

[abc_lisper]

I didn’t get the battery but paid 28.5K (without rebates) for a 12.8kW array. I think that’s very reasonable. Heating, cooling and car charging are covered with around 6mWH capacity left a year. Thinking of converting my water heater now.

[hedora]

I like our Ruud/Rheem hybrid heat pump water heater. (The two brands are the same company. The only difference is whether you pay someone to install it.)

However, it was not trouble free:

The time of day scheduling feature is useless. Once or twice a month it gets stuck in "lower temp" mode. The app reports kWh used and displays alerts, which is nice. Otherwise, there's no reason to give it WiFi access.

Pay for the leak detector option. It's relatively cheap, but not included for some reason.

You're likely to have condensation issues unless you use a good installer, or do it yourself and follow directions.

The power lead on ours wore through due to vibration too, so pick someone that's experienced/conscientious enough to route wires carefully.