If 65 days of the year you charge and 300 days you don't, it likely isn't cost effective. Peak time is also during the daytime which means baseload power sourc

If 65 days of the year you charge and 300 days you don't, it likely isn't cost effective. Peak time is also during the daytime which means baseload power sources like Gas/Hydro/Nuclear/etc. are likely fulfilling demand at night just fine. Most likely you are charging during winter and discharging during heat waves in the summer which may not be a viable business model despite the large delta in energy prices. At least that is my understanding, I'm not an expert. xD