An electric meter can deliver power at up to 4,000 volts, which is up to 3,000 times more efficient than the best diesel-electric hybrids, according to a new report from the Electric Power Research Institute.

The institute says that by 2020, the U:N.

International Energy Agency expects the average U.N. electric meter to be 100 times more energy efficient than an all-electric model, and that the most efficient electric meters for that metric are currently installed in Canada, Germany, Japan, South Korea, Taiwan and the United States.

The new report is based on an analysis of the efficiency of nearly 1,200 electric meter installations around the world.

The study found that the best-performing electric meters are the ones that use an efficient battery system, that have been installed with high-efficiency LED lights, and are built with integrated circuits that are efficient to use power efficiently.

It also found that while many of the best electric meters use high-pressure sodium lamps, the efficiency for electric meters that use lithium-ion batteries is lower than for conventional lithium-polymer batteries, which has led to some concerns that lithium-metal batteries will be more environmentally harmful.

The report recommends that countries and states invest in the adoption of new battery technology and that companies including Panasonic and Siemens research the use of energy-efficient technologies to reduce carbon emissions and energy consumption.