Energy efficiency means accomplishing the same tasks or outcomes while using less energy. Efficient technologies and practices deliver equivalent services—heating, lighting, transportation, manufacturing—with reduced energy consumption. Examples include LED bulbs providing the same light as incandescent bulbs with 75% less electricity, well-insulated buildings maintaining comfortable temperatures with less heating, and fuel-efficient vehicles travelling the same distance using less gasoline. Energy efficiency benefits include reduced utility bills, lower greenhouse gas emissions, decreased pollution, and less need for new power generation infrastructure. Governments promote efficiency through building codes, appliance standards, rebate programs, and public education. Municipalities pursue efficiency in their own facilities and fleets while encouraging community-wide improvements through incentive programs, green development standards, and public information campaigns. Energy efficiency is often the cheapest way to address energy needs.