Is it really worth spending tens of thousands of extra dollars and weeks of design review in pursuit of an additional $ 10 - 25 in annual energy cost savings? (energyvanguard.com)
No, it does not make sense to spend $ 20,000 to reduce annual energy costs by $ 300. (greenbuildingadvisor.com)
Together they spend roughly $ 1 billion in annual energy costs while producing approximately 5.6 million metric tons of carbon dioxide or other harmful greenhouse gases. (nyserda.ny.gov)