The Los Angeles Department of Water and Power (LADWP) said it provided nearly 20 percent of the city’s power, roughly 4,500 GWh, from renewable energy sources in 2010.

Data show that 19.7 percent of LADWP’s power came from renewable energy sources in 2010. The California Energy Commission’s  process is to round up to the closest percentage. In their findings, they will report that Los Angeles generated 20 percent of its power from renewable energy sources in 2010.

In 2005, LADWP and the city’s mayor committed to increasing the utility’s use of renewable energy from 5 percent to 20 percent by 2010.

The goal was reached through a combination of projects and power agreements. For example, in June 2009, LADWP began full operation of the Pine Tree Wind Power Plant, one of the nation’s largest wind farm owned by a municipal utility. Wind power comprised nearly half of all LADWP’s renewable energy in 2010. Small hydro-electric contributed 30 percent, geothermal/biofuels, 22 percent and solar, 1 percent.

Currently 3 percent of the city’s total power use is offset by energy efficiency. LADWP expects to save an additional 7 percent through energy efficiency by 2020.

LADWP said 39 percent of its power portfolio came from coal. The utility is in the process of divesting its ownership of the Navajo Generating Station in Arizona by 2014.

Read more news and features on renewable power generation.