Tweet The Cash for Caulkers bill, or the Home Star Energy Retrofit Act, was approved by the House on Thursday May 6 and is expected to pass the Senate this summer. What is it? Cash for Caulkers is similar to Cash for Clunkers where you get an instant rebate for making energy efficiency improvements to your home.  There are two levels of rebates you can get: 1.  For the the Silver Star, consumers would be eligible for rebates between $1,000 and $1,500 for a variety of home upgrades, including adding insulation, sealing leaky ducts and replacing water heaters, HVAC units,…