In fact, the US's more than 500,000 federal buildings and laboratories became the energy services industry's largest market, worth an estimated US $ 2.9 billion annually. Here in Taiwan, the industry has developed more slowly.
由於美國政府的重視，超過 50 萬棟的聯邦政府大樓與實驗室，也成為能源服務業最大的市場，估計這部分的「產值」高達 29 億美元。