Highlights of the study :

• Electricity consumed by commercial office buildings represents 37 percent of california's total electricity consumption. Based on the U.S. average, energy efficiency improvements could cut that usage by 80 percent.
• Only 60 percent of all new commercial building construction meets California energy efficiency standards. With a minimal two percent increase in construction costs, new buildings can be designed to use one-third to one-half less energy than they use today.
• Only three percent of all buildings are newly constructed or renovated every year.
• California has no energy efficiency standards for existing building stock, which could yield substantial savings in energy.
• Energy efficient buildings retain higher real estate value, commanding higher rents (6-7 percent) and maintaining higher occupancy rates than less efficient buildings.
• Simple energy efficiency improvements to existing buildings, such as insulating window films, yield three dollars in savings on average for every dollar invested.
• In existing buildings, split incentives, elevated hurdle rates, upfront capital costs, and an information gap diminish large-scale adoption of energy retrofits.
• In new commercial construction, a lack of incentives for developers and ineffective installation and inspection methods are barriers to energy efficiency efforts.
• Much can be achieved through actions taken at the federal, state and local levels that raise efficiency standards, align incentives, and support the broad-based application of high-efficiency products and practices.