Energy services providers saw business slow when the energy crisis eased in the 1980s, then pick up again in the 1990s as a result of two executive orders from the Clinton administration, one each in 1994 and 1999. These orders, which mandated that federal buildings cut their energy consumption by 20 % per square meter by 2005 and by 25 % by 2010, spurred growth in the energy efficiency and renewable energy industries.
1980 年代，能源危機解除，能源服務產業一度沉寂，1990 年代後才又蓬勃發展，關鍵在於，1994、1999 年柯林頓政府發布兩項行政命令，訂定出聯邦大樓「每平方呎的能源消耗量必須在 2005 年前減少 20 %、2010 年前減少 25 %」的節能要求，進而帶動能源效率提升、再生能源等節能產業發展。