Gore's estate has been criticized twice by the group the Tennessee Center for Policy Research (TCPR). In February 2007 the group stated that their analysis of records from the Nashville Electric Service indicated that the Gore household uses "20 times as much electricity as the average household nationwide."[181][182] In reporting on TCPR's claims, MSNBC noted that the Nashville Electric Service report "omits several other key facts. The former vice president's home has 20 rooms, including home offices for himself and his wife, as well as a guest house and special security measures. Furthermore, the Gores buy energy produced from renewable sources, such as wind and solar. Tonight, Countdown confirmed with the local utility officials that their program, called the Green Power Switch, actually costs more for the Gores -- four dollars for every 150 kilowatt hours. Meaning, by our calculations, our math here, that the Gores actually chose to increase their electric bill by $5,893, more than 50 percent, in order to minimize carbon pollution."[183] A few months later, the Associated Press reported on December 13, 2007 that Gore "has completed a host of improvements to make the home more energy efficient, and a building-industry group has praised the house as one of the nation's most environmentally friendly [...] 'Short of tearing it down and starting anew, I don't know how it could have been rated any higher,' said Kim Shinn of the non-profit U.S. Green Building Council, which gave the house its second-highest rating for sustainable design."[184]
Gore was criticized by the TCPR again in June 2008, after the group obtained his public utility bills from the Nashville Electric Service and compared "electricity consumption between the 12 months before June 2007, when it says he installed his new technology, and the year since then."[185][186] According to their analysis, the Gores consumed 10% more energy in the year since their home received its eco-friendly modifications. TCPR also argued that, while the "average American household consumes 11,040 kWh in an entire year," the Gore residence "uses an average of 17,768 kWh per month 1,638 kWh more energy per month than before the renovations."[186] Gore's spokeswoman Kalee Kreider countered the claim by stating that the Gores' "utility bills have gone down 40 percent since the green retrofit." and that "the three-year renovation on the home wasn't complete until November, so it's a bit early to attempt a before-and-after comparison."[187] She also noted that TCPR did not include Gore's gas bill in their analysis (which they had done the previous year) and that the gas "bill has gone down 90 percent [...] And when the Gores do power up, they pay for renewable resources, like wind and solar power or methane gas."[188] Media Matters for America also discussed the fact that "100 percent of the electricity in his home comes from green power" and quoted the Tennessee Valley Authority as stating that "[a]lthough no source of energy is impact-free, renewable resources create less waste and pollution."