A new E Source report, “Harvesting Energy Savings in Cannabis Cultivation Facilities: Quick Wins for Cultivators and Utilities,” outlines the quickest, most cost-effective measures for improving the energy efficiency of indoor growing facilities, which are often built with the haste of a modern-day gold rush.

E Source has been evaluating energy-efficiency technologies and studying trends in the electric efficiency industry for more than 25 years. During that period, utilities have experienced few events as disruptive as the legalization of marijuana cultivation. In Washington State, for example, analysts predict a cannabis-driven load growth of 80 to 160 average megawatts of power over the next 20 years—equivalent to the electricity needs of a small city.

A new E Source report, “Harvesting Energy Savings in Cannabis Cultivation Facilities: Quick Wins for Cultivators and Utilities,” outlines the quickest, most cost-effective measures for improving the energy efficiency of indoor growing facilities, which are often built...