Tesla 2025 Solar Powerwall Year In Review

Each year, Tesla gives you a bunch of solar and Powerwall stats. You also get to see community stats and where you land in the pack for some of them. They also give you a title or category depending on how you use your system. My title is on the final image below. 

Saving money is not the primary reason that we bought solar and Powerwalls, but once we had them, I certainly tried to maximize this aspect. 

509 years is quite the smartphone charge.

Jog for 2 years, but at what speed? 🏃

I am really surprised that we're even in the top half for solar production. We're in rainy Oregon, and we have east/west-facing panels.

StormWatch mode is one of my favorite features of the Powerwall. If the grid goes down, my lights (and heat) don't go out.

4.5MWh is enough to power a small community during an outage. This much energy could supply electricity to about 400-500 average US homes for a full hour during peak demand, or around 150 homes for a whole evening (assuming ~30 kWh daily use per home). Of course, in my case, this energy was spread out over the year.

Our lowest consumption days tend to be in the Spring and Autumn, when the heat pump does not need to heat or cool our house. 

Our highest energy usage days are typically in July or August when the AC has to run for several hours each day. So why was June 9th our big day in 2025? This was a VPP event day. Our local utility sucked 32 kWh from our Powerwall along with all the surplus solar that we could generate during the event. 

There are over a thousand peak hours each year on our TOU energy schedule. Solar covered 16% of it, Powerwalls covered the bulk (57%), leaving just 27% for the grid. For 2026, the Powerwall coverage should be even higher since we had a new TOU schedule starting on January 1st, 2025 and the Powerwall was slow to adjust to the new schedule (despite the fact that I put the new rate schedule in on Jan 1st).

 

Congratulations, you've made it to the end, so you get to see that our title for 2025 is Trickster. We don't use our Powerwalls in the boring stand-by only mode or the straightforward self-power mode. Instead, we time-shift to use solar to cover the peak hours and use off-peak charging in the winter to supplement this. This is a win-win; we get more affordable energy, and the grid gets to offload our demand during peak time and deliver more during off-peak when there's plenty of capacity available. ♕