Eco Trees

San Francisco mayor, Gavin Newsom, launched a challenge to the largest 1,500 business from the town to go on solar energy until next year and invites them to join him as members of the Mayor's Solar founders' Circle (SFC).

Those who become members will receive energy efficiency audits from the San Francisco Department of the Environment and solar assessments. Authorities from San Francisco have already launched a program of financial incentives over 10 years to ease the cost of solar energy.

Gavin Newsom has estimated that these companies would have the potential to install 170 megawatts solar energy on their roofs, 30 times more than the capacity currently installed in city and has enough to power more than 42,000 houses.

Another great American city, New York, announced in April a plan to install solar panels on the roofs of public buildings.