“The investment in the new production facility is an important step for the development of
renewables-based power plant technology,” said René Umlauft, CEO of the Siemens´ Renewable
Energy Division. “Siemens has the broadest portfolio in the promising concentrated solar power
business. We can offer about 70 percent of the components of a solar thermal power plant as well
as EPC solutions. In the future Siemens can offer two receiver technologies using either thermo oil
or molten salt depending on customer requirements.” The power block and the solar field are the
key components of every parabolic-trough power plant.

Archimede Solar Energy is a subsidiary of the industrial group Angelantoni Industrie, and is
headquartered in Massa Martana in Umbria. Siemens holds a 28-percent stake in the company.
“The new plant,” said Federica Angelantoni, CEO of Archimede Solar Energy, “gives us the
opportunity to supply large volumes of high temperature receivers for the use of molten salt. These
tubes can reach a temperature of up to 550 ° Celsius.”

The use of molten salt in the receivers can significantly increase the efficiency of solar-thermal
power plants. If required, molten salt is used for heat storage, allowing the stored energy to be
used for power generation at night.

A first commercial plant is currently under construction in Sicily. The Priolo Gargallo project will use
1500 solar receivers with molten salt as heat transfer medium and is expected to go operational in
early summer 2010.
Until 2020, the market for solar thermal power plants will show annual double-digit growth rates
and attain a volume of over EUR20 billion. In the future, the primary focal growth regions will be the
U.S., South Africa, Australia, Spain, Israel, India, North Africa and the Middle East.
Products and solutions for solar thermal power plants are parts of Siemens’ Environmental
Portfolio. In fiscal 2009, revenue from the Portfolio totaled about EUR23 billion, making Siemens
the world’s largest supplier of ecofriendly technologies. In the same period, the company’s
products and solutions enabled customers to reduce their CO2 emissions by 210 million tons. This
amount equals the combined annual CO2 emissions of New York, Tokyo, London and Berlin.

The Siemens Energy Sector is the world’s leading supplier of a complete spectrum of products, services and solutions
for the generation, transmission and distribution of power and for the extraction, conversion and transport of oil and gas.
In fiscal 2009 (ended September 30), the Energy Sector had revenues of approximately EUR25.8 billion and received
new orders totaling approximately EUR30 billion and posted a profit of EUR3.3 billion. On September 30, 2009, the
Energy Sector had a work force of more than 85,100. Further information is available at: www.siemens.com/energy