Dfizzle2

I take it that this calculation would only benefit areas with high solar irradiance. A >$50k system would not be feasible where solar isn’t a significant renewable source.

Also, out of curiosity, what is the installed capacity of your optimal PV system? That’s something good to know because it should be important to know how large of a rooftop/field is needed to achieve this.

Photovoltaic

My apologies for missing that - so the financing mechanism would be a lease like what SolarCity does? This is definitely the way forward for solar deployment at the home owner level.

Also - a 50MWh annual use is very large. Americans use about 10MWh per year. So, that makes the lion share of users are below the optimal scale needed to make this feasible.

You’re totally right - I was speaking about $50k and mixed it with the installed capacity :-). Sorry I’m juggling work and commenting which is always entertaining.

Still, 20MWh is double the average household usage, which according to the curve is the optimal annual usage.

Regardless of the specifics, this is the type of analysis we need more of looking ahead. The combo of in home storage systems and rooftop mounted PV systems will be a great option to help homes become net zero energy homes.