The least energy efficient buildings in the US use eight times more gas, five times more electricity and four times more oil than the most-efficient ones during the winter months, a new survey claims, reports Energy Live News.
That means energy bills for inefficient buildings could cost up to eight times more, especially in January, suggests benchmarking firm WegoWise which drew the findings from its database of more than 17,000 buildings and 1.6 million utility bills.
Most-efficient and least-efficient buildings are defined as those that are in the top 10% and lowest 10% of efficiency in the study.
