It's great that Potomac Edison bills are down to about $35 since installing solar panels, down from over $100 before solar. Our insulation upgrade has been worth doing. both for comfort and energy savings. However, we did not receive the rebate from Potomac Edison for insulation and sealing retrofits in over a year since we applied, and nothing from the Maryland Energy Administration Residential Clean Energy grant program for solar in over 6 months, since we applied. :)