So I post a lot of PoCo hate, But to turn things on a more happy upside, I just want to post about how great PV+ESS is for a homeowner. Like, it's amazeballs, and I hope anyone on the fence about getting such a system can be motivated to try and make it happen.
While it sounds like Tesla Energy is going to be pushing the PV+ESS as "standard" on future installs... it's worth shopping around to find a complete PV+ESS installer that will do the best design for your particular house. Maybe Tesla is that installer, maybe it's Sunrun, maybe it's someone else.
My goal of getting PV+ESS was to use my own PV energy as much as possible. The batteries would be essential to power through the peak time where solar energy is not bountiful, but household demand starts to spike. For people in Northern California and an EV, the rate schedule "EV2-A" has heightened costs that span 3pm to midnight.
For almost every day since mid February, this is what I see across ALL my home loads...
1. From midnight to sunrise: I am on Grid energy with the PW as backup.
2. From sunrise to about 1pm: Solar is powering the house with excess going into the PWs
3. At about 2pm, the Powerwalls reach 100% SoC
4. From 2pm to 3pm: Solar is powering the house with excess going to the Grid
5. From 3pm to sunset: Solar is doing full export to the Grid, while the Powerwalls power the house
6. From sunset to midnight: The Powerwalls power the house
Rinse and repeat. This is the best possible outcome I could have imagined. I generate as much juicy NEM credit as I can to cover the high-AC and Winter months. And at no point in time do I give a second thought about what time it is before run a home load. The only thing I'll have to do is make sure to only charge an EV after midnight... which should be rather easy to do.
I gave this TOU shifting "timeline" to numerous installers in 2020. This included Tesla, Sunrun, SunPower, and a slew of local shops. And not one of them thought it was possible. But the folks here on TMC made it seem like this was totally normal and expected. It turns out TMC with people like @wwhitney and @Vines knows more than a huge number of East Bay solar companies
So yeah, the process of getting PV+ESS may not be the most fun, but the outcome is just amazing. 10/10 highly recommended even if the financial ROI is tough to rationalize.
While it sounds like Tesla Energy is going to be pushing the PV+ESS as "standard" on future installs... it's worth shopping around to find a complete PV+ESS installer that will do the best design for your particular house. Maybe Tesla is that installer, maybe it's Sunrun, maybe it's someone else.
My goal of getting PV+ESS was to use my own PV energy as much as possible. The batteries would be essential to power through the peak time where solar energy is not bountiful, but household demand starts to spike. For people in Northern California and an EV, the rate schedule "EV2-A" has heightened costs that span 3pm to midnight.
For almost every day since mid February, this is what I see across ALL my home loads...
1. From midnight to sunrise: I am on Grid energy with the PW as backup.
2. From sunrise to about 1pm: Solar is powering the house with excess going into the PWs
3. At about 2pm, the Powerwalls reach 100% SoC
4. From 2pm to 3pm: Solar is powering the house with excess going to the Grid
5. From 3pm to sunset: Solar is doing full export to the Grid, while the Powerwalls power the house
6. From sunset to midnight: The Powerwalls power the house
Rinse and repeat. This is the best possible outcome I could have imagined. I generate as much juicy NEM credit as I can to cover the high-AC and Winter months. And at no point in time do I give a second thought about what time it is before run a home load. The only thing I'll have to do is make sure to only charge an EV after midnight... which should be rather easy to do.
I gave this TOU shifting "timeline" to numerous installers in 2020. This included Tesla, Sunrun, SunPower, and a slew of local shops. And not one of them thought it was possible. But the folks here on TMC made it seem like this was totally normal and expected. It turns out TMC with people like @wwhitney and @Vines knows more than a huge number of East Bay solar companies
So yeah, the process of getting PV+ESS may not be the most fun, but the outcome is just amazing. 10/10 highly recommended even if the financial ROI is tough to rationalize.