HOME STAR (or HOMESTAR), informally known as Cash for Caulkers, was a United States government program proposed in November 2009 to encourage economic growth by offering incentives to homeowners and retailers for improving the energy efficiency of existing homes.
Background
In late 2009 there was a broad perception that the United States economy was beginning to recover from the Late-2000s recession. There was a broad perception that government spending authorized by the American Recovery and Reinvestment Act of 2009 had contributed to the recovery, and some desire for the government to do more to encourage job growth and a faster recovery. Doerr, in public speeches, called the proposal "cash for caulkers". Separately U.S. Representative Peter Welch proposed a system of energy rebates to Rahm Emanuel, Obama’s Chief of Staff. Obama, in turn, proposed the idea as part of a larger new stimulus program, at a speech at the Brookings Institution on December 8, 2009.
The stated goals of the proposed program are to reduce pollution, particularly greenhouse gases, by reducing household energy use, to save consumers money in the long term through lower power bills, and to stimulate American businesses through the money spent on appliances, materials, and installation. Improving the energy efficiency of "fixed infrastructure", which accounts for approximately 40% of all energy use in the United States, is considered the "low hanging fruit" of energy conservation - a step that achieves results relatively inexpensively and does not require any new technologies or changes to production or consumption methods.
The name "Homestar" is a reference to the popular energy star electronic device efficiency rating system, and the nickname "Cash for Caulkers" is a play on the earlier cash for clunkers automobile trade-in incentive.
The program was expected to cost approximately $10 billion over the course of one year, paid for out of unspent Troubled Asset Relief Program funds, and would reduce energy consumption of homes that took full advantage of the program by up to 20%. To become effective it would have to be part of a bill passed by the United States Congress.