BOULDER CITY, NV - MARCH 21: U.S. President Barack Obama speaks at Sempra U.S. Gas & Power's Copper Mountain Solar 1 facility, the largest photovoltaic solar plant in the United States on March 21, 2012 in Boulder City, Nevada. Obama is on a four-state tour promoting his energy policies. (Photo by Ethan Miller/Getty Images)

WASHINGTON –- President Barack Obama will visit a Walmart in Mountain View, California, on Friday, where he will be tout the administration's push for solar power and energy efficiency.

The president will announce a Department of Energy solar instructor training network, which will assist with training programs at community colleges. The program's goal is getting 50,000 additional workers to enter the solar industry by 2020, according to the White House.

Obama also will announce a goal of $2 billion in new spending on energy efficiency improvements to federal buildings over the next three years. The amount is in addition to the $2 billion for energy efficiency the administration announced in 2011.

The announcements follow Tuesday's release of a major federal assessment of climate change impacts in the U.S.

The administration also said Friday that installation of electricity-generating solar panels on the White House is finally complete. Environmental groups had campaigned for Obama to replace solar panels that President Jimmy Carter had installed in 1979 that were removed during the Reagan administration. The White House said in October 2010 that it would install new panels, and work began in August.

The solar panels, said White House spokesman Matt Lehrich, demonstrate Obama's "commitment to lead by example to increase the use of clean energy in the U.S."

The panels are on the portion of the White House where the Obamas reside, will provide 6.3 kilowatts of solar generation. Lehrich said workers have made retrofits to the residence to improve energy efficiency, and the full project "is estimated to pay for itself in energy savings over the next eight years.”