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2016-05-17

Wärtsilä Oyj Abp: Wärtsilä power plant mitigates "killer lake" gases in Rwanda

Wärtsilä Corporation, Press release, 17 May 2016 at 9:30 am EET

The inauguration of KivuWatt, a 25 MW Smart Power Generation power plant
supplied by Wärtsilä, took place in Kibuye, Rwanda on Monday 16 May. The
plant is powered by three Wärtsilä 34SG engines running on methane gas that
is lifted from the depths of Lake Kivu. The ceremony was hosted by the owner
of the power plant, ContourGlobal, and the plant was inaugurated by Rwanda's
President, Mr Paul Kagame.

"This project will significantly enhance the energy supply of the country,
while improving the safety of the millions of people living on the shores of
Lake Kivu," said Joseph C. Brandt, CEO of ContourGlobal.

Lake Kivu has been known as the "killer lake" due to the large amounts of
methane gas trapped under a layer of heavy water washed out of the nearby
volcanoes. When the gas concentration gets too high, or the lake is hit by
one of the region's regular earthquakes, the gas can be set free. This poses
a threat to the people living in the vicinity.

"By tapping into these gas resources, the project makes Lake Kivu a safer
place, while supplying much-needed electricity to the national grid," said
Atte Palomäki, Executive Vice President, Communications&Branding, Wärtsilä
Corporation.

The methane is lifted from a depth of 300 metres by a special barge anchored
13 kilometres off-shore. The gas is purified on the barge and transported to
the shore through an underwater pipeline. The gas is then used in the engines
of the power plant, providing low-cost renewable energy to the local
community and to the country.

Wärtsilä was contracted to supply the Smart Power Generation plant with a full
engineering, procurement and construction (EPC) delivery in 2011. The plant
has been operational and running on the extracted methane since December
2015. Currently ContourGlobal is preparing to extend the plant with one more
Wärtsilä 34SG engine.

The Wärtsilä 34SG engine offers the highest simple cycle efficiency in the
market, showing no derating at the altitude of 1500 metres. The engines are
optimised to run on Lake Kivu's gases that have a lower heating value than
normal natural gas. This has helped to downsize the size of the extracting
barge and optimise the costs of producing electricity. Wärtsilä has
previously delivered two other EPC projects to ContourGlobal in Africa: a 100
MW plant in Togo, and a 53 MW plant in Senegal. The Senegal project currently
has a 32 MW extension under construction.

Wärtsilä's installed capacity in Rwanda is now 46 MW, which is approximately
50 percent of the country's available power generation capacity. In Africa,
Wärtsilä's installed base is 6500 MW in 46 countries. The majority of the
projects are based on EPC and include full operations and maintenance
contract.

Link to images

Link toWärtsilä's reference page

Link toContourGlobal's video

Edze-Jan Kroneman
Regional Director
Wärtsilä Energy Solutions
Tel: +31653912271
edze-jan.kroneman@wartsila.com

Jussi Laitinen
Communications Manager
Wärtsilä Energy Solutions
Tel: +358 50 4042006
jussi.laitinen_external@wartsila.com

Wärtsilä Energy Solutions in brief
Wärtsilä Energy Solutions is a leading global supplier of ultra-flexible power
plants of up to 600 MW operating on various gaseous and liquid fuels. Our
portfolio includes unique solutions for baseload, peaking, reserve and
load-following power generation, as well as for balancing intermittent
renewable energy. Wärtsilä Energy Solutions also provides utility-scale solar
PV power plants, as well as LNG terminals and distribution systems. As of
2016, Wärtsilä has 60 GW of installed power plant capacity in 176 countries
around the world.
www.smartpowergeneration.com

Wärtsilä in brief:

Wärtsilä is a global leader in advanced technologies and complete lifecycle
solutions for the marine and energy markets. By emphasising sustainable
innovation and total efficiency, Wärtsilä maximises the environmental and
economic performance of the vessels and power plants of its customers.
In 2015, Wärtsilä's net sales totalled EUR 5 billion with approximately 18,800
employees. The company has operations in over 200 locations in more than 70
countries around the world. Wärtsilä is listed on Nasdaq Helsinki.
www.wartsila.com

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This announcement is distributed by NASDAQ OMX Corporate Solutions on behalf of NASDAQ OMX Corporate Solutions clients.
The issuer of this announcement warrants that they are solely responsible for the content, accuracy and originality of the information contained therein.
Source: Wärtsilä Oyj Abp via Globenewswire

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