MidAmerican Wind Completes Its Acquisition of Two California Wind Projects From Terra-Gen Power

  MidAmerican Wind Completes Its Acquisition of Two California Wind Projects
  From Terra-Gen Power

  Alta Wind VII and Alta Wind IX projects total approximately 300 megawatts

Business Wire

DES MOINES, Iowa -- November 08, 2012

Today, MidAmerican Wind, a subsidiary of MidAmerican Renewables whose parent
company is MidAmerican Energy Holdings Company, announced it has completed the
acquisition of the 168-megawatt Alta Wind VII and the 132-megawatt Alta Wind
IX projects from California Highwind Power, a subsidiary of Terra-Gen Power,
LLC. The projects are located near Tehachapi, Calif., and will consist of a
total of 100 Vestas 3-megawatt V90 wind turbines.

The Alta Wind VII and Alta Wind IX projects bring MidAmerican Wind’s renewable
energy portfolio to 381 megawatts.

“The completion of this acquisition marks MidAmerican Wind’s second
acquisition of wind generation assets in 2012,” said Tom Budler, president of
MidAmerican Wind. “We are pleased to add the Alta Wind VII and Alta Wind IX
projects to our generation portfolio.”

When complete, Southern California Edison will purchase electricity from each
of the projects pursuant to the terms of long-term power purchase agreements.
The projects will interconnect to and utilize Southern California Edison’s
Tehachapi Renewable Transmission Project.

With the addition of the Alta Wind projects, MidAmerican Renewables’ portfolio
includes more than 1,250 megawatts of owned renewable energy assets in
operation or under construction.

Through its subsidiaries, MidAmerican Energy Holdings Company is the No. 1
rate-regulated utility owner of wind-powered generation capacity in the U.S.
MidAmerican began building wind energy projects in 2004, and the company has
built or acquired more than 3,300 megawatts of wind generation. Through
MidAmerican Wind, MidAmerican is growing its unregulated wind generation

MidAmerican Renewables
MidAmerican Renewables is a subsidiary of MidAmerican Energy Holdings Company,
a global energy provider. MidAmerican Renewables owns and operates wind,
geothermal, solar and hydro projects in the unregulated renewables market.
MidAmerican Renewables is headquartered in Des Moines, Iowa, and has offices
in Phoenix, Ariz., and Calipatria, Calif. Information about MidAmerican
Renewables is available on the company’s website and its Twitter, Facebook and
YouTube pages, which can be accessed via www.midamericanrenewablesllc.com.

MidAmerican Energy Holdings Company
MidAmerican Energy Holdings Company, based in Des Moines, Iowa, is a global
provider of energy services. Through its energy-related businesses,
MidAmerican provides electric and natural gas service to more than 6.9 million
customers worldwide. These businesses are Pacific Power, Rocky Mountain Power
and PacifiCorp Energy, comprising PacifiCorp; MidAmerican Energy Company;
Northern Powergrid Holdings Company; Northern Natural Gas Company; Kern River
Gas Transmission Company; MidAmerican Renewables; and CalEnergy Philippines.

Information about MidAmerican is available at www.midamerican.com.


MidAmerican Energy Holdings Company
Ann Thelen, 515-281-2785
Director, Communications and Media Relations
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