Solar shingles are expensive and unproven. I recommend Sun Power photo voltaic solar. An average home is $20,000 to $30,000 and the return on investment is 4 to 6 years on a 25 plus year system.
Many great answers here regarding insulation and air sealing. If you have a pool, also look into upgrading your pump to a variable speed pump. They run at lower RPM for filtering than they do for va ... read more