First year of solar generation

 We had out solar and battery system installed a year ago and so I thought I would share the stats! 

 

Yes, we generated 4.64 MWh and we used 3.2 MWh, meaning a surplus of 1.4MWh! 

We got a BEV recently, though, which will use up a lot of that difference in the future. But we have about 4k miles worth of spare capacity there. 

Here is the usage and generation broke down month-by-month. Big surpluses from April to September, March and October are break-even months, and November – February we are in deficit. 

Not too surprising given that we have an East-West roof rather than South-facing. 

We had some data connection issues in November and December so for those months the data might be a bit lower than it should have been, but not by a huge amount. 

 

What are the conclusions? 

I'd say "get as many solar panels on your East/South/West facing rooves as they can fit."

We need to switch over to renewable electric energy ASAP, and to "electrify everything" in order to "stop burning stuff." 

I kind of wish we could have crammed a few more panels on there, given that the panels themselves are pretty cheap and a lot of the cost is the electrical work. However, we had a budget at the time.