Green lighting has its day Energy services companies analyze energy usage, estimate benefits, negotiate contracts, purchase equipment, subcontract work, and oversee projects. The concept underlying the business is simple, but the technical processes can be complicated. The work takes an average of 18 months, with the most immediate energy savings usually coming via lighting improvements.
從診斷分析、效益評估、合約洽談、設備採購、發包施工、運轉監控等，能源服務概念簡單但技術流程複雜，平均要花 18 個月時間，其中節能最快的作法就是改善照明。