ADDING MULTIMEDIA Southern California Edison Launches Nation's Largest Solar Panel...

ADDING MULTIMEDIA Southern California Edison Launches Nation's Largest Solar Panel Installation

Will Convert 65 Million Square Feet of Unused Roofs into Solar
Generating Stations
ROSEMEAD, Calif.--(Business Wire)--
Southern California Edison (SCE) today launched the nation's
largest solar cell installation, a project that will place 250
megawatts of advanced photovoltaic generating technology on 65 million
square feet of roofs of Southern California commercial buildings -
enough power to serve approximately 162,000 homes.

"These are the kinds of big ideas we need to meet California's
long-term energy and climate change goals," said Governor
Schwarzenegger. "I urge others to follow in their footsteps. If
commercial buildings statewide partnered with utilities to put this
solar technology on their rooftops, it would set off a huge wave of
renewable energy growth."

"This project will turn two square miles of unused commercial
rooftops into advanced solar generating stations," said John E.
Bryson, Edison International chairman and CEO. "We hope to have the
first solar rooftops in service by August. The sunlight power will be
available to meet our largest challenge - peak load demands on the
hottest days."

SCE's renewable energy project was prompted by recent advances in
solar technology that reduce the cost of installed photovoltaic
generation. When combined with the size of SCE's investment, the
resulting costs per unit are projected to be half that of common
photovoltaic installations in California.

"The scale of this project is unprecedented," said Mike Peevey,
California Public Utilities Commission (CPUC) president. "It clearly
illustrates once again Edison's leadership position in the development
of new renewable technology."

SCE today asked the CPUC for approval to install the solar cell
technology during the next five years. The request estimates the total
project cost will be $875 million (in today's dollars).

The utility plans to begin installation work immediately on
commercial roofs in Southern California's Inland Empire, San
Bernardino and Riverside counties, the nation's fastest growing urban
region.

"These new solar stations, which we will be installing at a rate
of one megawatt a week, will provide a new source of clean energy,
directly in the fast-growing regions where we need it most," said
Bryson.

SCE sees numerous customer benefits from its new solar program,
among them locating the new generation in areas of growing customer
demand. And the clusters of solar modules SCE plans to install will be
connected directly to the nearest neighborhood circuit, eliminating
the need to build new transmission lines to bring the power to
customers. Additionally, solar units produce the most power when
customer usage is at its highest.

SCE believes its commercial solar roofs program will boost several
California environmental initiatives, especially the Million Solar
Roofs program that provides incentives to encourage Californians to
install solar projects by 2017. SCE's solar program supports the
state's Global Warming Solutions Act requiring the reduction of
greenhouse gas emissions to 1990 levels by 2020, as well as
California's renewable portfolio standard requiring that 20 percent of
the state's electricity be generated with renewable energy by 2010.

How It Works

Solar cells are made of materials that convert sunlight directly
into electricity through a chemical process.

-- A thin semiconductor wafer is treated to form an electric
field - positive on one side and negative on the other side.

-- When light strikes the cell, electrons are knocked loose from
the atoms of the material creating the current.

-- Wires are attached to the positive and negative sides to carry
the electricity from the cell to the device to be powered.

An Edison International (NYSE:EIX) company, Southern California
Edison is the largest electric utility in California, serving a
population of more than 13 million via 4.8 million customer accounts
in a 50,000-square-mile service area within central, coastal and
Southern California.

Video and high-resolution photos available at
www.sce.com/solarevent.

Southern California Edison
Media Contact:
Gil Alexander, 626-302-2255
www.edisonnews.com
or
Investor Relations Contact:
Scott Cunningham, 626-302-2540
www.edisoninvestor.com

Copyright Business Wire 2008