2013-01-08 12:03:35 -

Wärtsilä Corporation, Press release, 8 January 2013 at 1 pm EET

Wärtsilä, a leading global supplier of flexible and efficient power plant
solutions, has received an order to engineer and supply a large power plant to
South Texas Electric Cooperative (STEC) in the USA. The contract was signed in
December 2012, and the order is included in Wärtsilä's fourth quarter 2012 order
book.

The STEC Red Gate power plant will be located in Hidalgo County, Texas and is
scheduled to be in commercial operation by summer 2014. The plant will be
powered by 12 Wärtsilä 50SG engines running on natural gas. The total output of
the plant will be 225 MW and will help STEC to meet the growing demand for
electricity in South Texas.

"Wärtsilä engine technology has proven to   be very effective at meeting the
challenges of a dynamic ERCOT (Electric Reliability Council of Texas) market. We
see continued value in investments in flexible, efficient combustion engines to
serve the needs of our member cooperatives, and we are very pleased to work with
Wärtsilä on our Red Gate Power Project," says John Packard, Manager of
Generation, South Texas Electric Cooperative.

The new Red Gate power plant is designed to meet BACT (Best Available Control
Technology) pollution standards as mandated by the United States Clean Air Act.
The high efficiency of the Wärtsilä combustion engine technology results in
fewer emissions of CO(2) than simple cycle gas turbine solutions. One of the
benefits of the Wärtsilä 50SG engine is that its high simple cycle efficiency is
achieved with minimal water consumption.

"In today's power generation market, flexibility, quick start-up capability,
superior load following and low water consumption are essential factors, and
these were important considerations in the award of this valuable contract.
Furthermore, the high level of engine efficiency means that the lifecycle costs
of the Wärtsilä solution are very favourable," says Wayne Elmore, Regional
Director, Power Plants Sales, Wärtsilä North America.

Wärtsilä has also signed a Maintenance Agreement to provide technical and
operational assistance with maintenance planning, technical advisors, spare
parts, and an on-site inventory. "We are very pleased that STEC entered into a
Wärtsilä Maintenance Agreement which provides technical, parts and risk sharing
support in managing its Red Gate operations," says Aron Rader, Area General
Manager, Agreement Support, Wärtsilä North America.

Wärtsilä already has three power plants installed in Texas, including the 200 MW
plant at Pearsall, Texas owned and operated by STEC. Globally, Wärtsilä has sold
4,600 power plants in 169 countries with a total generating capacity of more
than 49 GW.
The Wärtsilä 50SG engine
The Wärtsilä 50SG is a four-stroke, spark-ignited gas engine operating on the
Otto cycle and incorporating the lean-burn principle. It has been designed using
the proven gas technology used in the smaller Wärtsilä 34SG engine. An important
feature of this engine is its exceptionally high power plant net electrical
efficiency rating at high ambient temperatures - more than 50 percent in
combined-cycle mode.
The lean-burn gas engines (SG) feature port admission of gas, a pre-chamber with
controlled gas flow, as well as individual cylinder control of the gas charge
and ignition timing. This choice of concept, along with extensive research in
combustion and combustion control, has made it possible to elevate the
efficiency from 40% to more than 48% in the bigger engine models. The
combination of high efficiency and low emissions makes the 50SG a technology
leader in today's energy market.
Read more about Wärtsilä Power Plants and Wärtsilä gas engines.

Press release 14 January 2008 on South Texas Electric Cooperative power plant at
Pearsall, Texas
Image of the South Texas Electric Cooperative power plant at Pearsall, Texas. It
has operated with 24 Wärtsilä 34SG engines more than two years.

Image of Wärtsilä 50SG engine

For further information please contact:

Dan Shelledy
Business Development Manager
Wärtsilä North America
Tel: +1 (281) 233-6200
dan.shelledy@wartsila.com

Anna-Leena Pohjanpalo
Media Officer, Media & Stakeholder Relations
Wärtsilä Corporation
Tel: +358 10 709 5627
anna-leena.pohjanpalo@wartsila.com


About South Texas Electric Cooperative

South Texas Electric Cooperative was formed in 1944 to provide wholesale
electric power to member cooperatives. Presently the South Texas Electric
Cooperative serves eight distribution cooperatives: Karnes, Wharton County,
Victoria, Jackson, San Patricio, Nueces, Magic Valley and Medina electric
cooperatives. These cooperatives provide service to over 170,000 members in 65
South Texas counties. The cooperative's headquarters are located in Nursery
Texas, at the Sam Rayburn generating plant.

Wärtsilä in brief

Wärtsilä is a global leader in complete lifecycle power solutions for the marine
and energy markets. By emphasising technological innovation and total
efficiency, Wärtsilä maximises the environmental and economic performance of the
vessels and power plants of its customers. In 2011, Wärtsilä's net sales
totalled EUR 4.2 billion with approximately 18,000 employees. The company has
operations in nearly 170 locations in 70 countries around the world. Wärtsilä is
listed on the NASDAQ OMX Helsinki, Finland.
www.wartsila.com


STEC Pearsall power plant: 
 hugin.info/131481/R/1668903/542111.jpg

Wärtsilä 50SG engine: 
 hugin.info/131481/R/1668903/542113.jpg



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Source: Wärtsilä Oyj Abp via Thomson Reuters ONE
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