Hmmmm... Our #solar battery provider is offering to upgrade our unit.
Going from 2kWh to 4.8kWh.
Total cost including installation will be £2,900!
That's expensive. But cheap for a battery of that size.
Our old battery is about 8 years old, and getting a little temperamental. But still basically works.
But bigger capacity would mean being able to export more when energy prices are high.
Any thoughts on whether we should go for it?
Thanks to everyone who answered ⬆️ about #solar storage.
We've decided to go for it! Much bigger battery being installed next week. Hopefully we haven't seen the last of summer :-)
☀️ ➡️ 🔋 ➡️ 🔌
They're here!
2x US2000 batteries and a smart controller - ready to be installed.
Will more than *double* our #solar storage capacity.
And, come winter, we'll be moving on to a smart tariff which will charge them from the grid when electricity is cheap - and discharge when it is expensive.
Hopefully these will one day be cheap enough to store a full day, week, or even month of juice.
New Moixa #solar battery installed.
Should be able to store 4.8kWh.
Ethernet connected (WiFi too, if I want) so it can receive instructions on when to activate.
Little info screen showing basic data.
Currently soaking up the sun, ready to power our home after sunset.
New blog coming soon 🌞
Battery got to about 95% full yesterday.
Started discharging at about 20:00.
This morning it is 30% full.
That's consistent with our home's ~250W idle usage.
Our electricity costs for last night are £0.00. Which saved us about a quid.
At current prices, this battery will pay for itself in 7 years (obviously it is a lot more complicated than that.)
Took 6 hours to charge the battery from 35%-100%.
Fairy standard WFH day - lots of computer use, but no domestic appliances.
Going to use the oven and see how quickly the battery responds to increased power use.
Hopefully eating #solar cooked pizza tonight 😆
Nice! Looks like the #solar battery spits out a max of 2.35kW.
So our oven only needs to draw a few hundred watts from the grid.
Next step in my #solar battery journey is to get API access so I can start drawing graphs like this.
The app/website shows how much electricity our home generates, stores, buys, and uses.
Yesterday, for example, we only paid for electricity when cooking. The rest of the day (and night!) we used self-generated power.
I'll use this to work out how much money the battery saves us.
My #solar battery doesn't have an easy API (unless I want to start learning AWS Cognito) - but it is easy enough to automate screenshotting.
Here's how our panels and battery performed on this wet and miserable day.
@Edent crop out tho numbers (fixed location so easy) and OCR?
