gascant said:
After getting two quotes for $3500 to do a 2nd meter, I think I might try the first summer at E9A and spend the money adding more insulation to my attic and installing a ventilator fan up there. That should help reduce the cooling load. I'll definitely program the LEAF to charge between 1-7AM.
Be very careful with your attic fan selection. Many will draw a couple hundred watts and will use more energy than they save.
My preference in this order if you're worried about attic heat gain in summer:
- Insulation - minimum R30 - better is R50 or so
- Vents - make sure your eave vents and roof vents are large enough to ensure adequate natural ventilation
- Solar attic fan - if you still feel like there's too much heat up there
Insulation also has the added benefit of keeping your house warmer in winter.