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Bruce Proven Appointed to Facility Management Post at ReEnergy Lyonsdale

CONTACT: Sarah Boggess: (518) 810-0200, sboggess@reenergyholdings.com

Albany, N.Y. – April 10, 2014 – Bruce Proven of Leyden has been named Facility Manager of ReEnergy
Lyonsdale, a 22-megawatt biomass energy facility in Lyonsdale, NY.

Mr. Proven has more than 25 years of experience in all aspects of industrial and power plant
commissioning, start-up, operations, maintenance and management. Most recently he was the
Operations Manager at Lyonsdale. Prior to that, he was a shift supervisor at ReEnergy Livermore Falls in
Maine.

In his new post, Mr. Proven will be responsible for overseeing the operations of the Lyonsdale facility.

“Bruce has extensive experience in the operation and management of power plants. The Lyonsdale
facility will benefit from Bruce’s experience and his commitment to the biopower industry,” said James
White, ReEnergy’s Vice President for Energy Operations.

Mr. Proven holds a 1st
Class Stationary Engineers License issued by the State of Maine and a National
Chief Stationary Engineers License issued by The National Association of Operating Engineers.

The ReEnergy Lyonsdale biomass-to-electricity facility is located on Marmon Road in Lyonsdale. It uses
sustainably harvested biomass to produce approximately 162,000 net MWh of renewable energy each
year — enough electricity to supply about 21,000 homes. It also provides steam as needed to the
neighboring Burrows Paper.

The 22-megawatt facility, which opened in 1992, was acquired by ReEnergy in March 2011 and is part of
a multi-facility portfolio in four states. ReEnergy has invested significantly in the Lyonsdale facility to
improve its efficiency and performance. The facility employs 22 individuals at the facility and supports
more than 100 total indirect and direct jobs, many of them harvesting fuel in local forests.

About ReEnergy Holdings LLC

ReEnergy Holdings LLC, a portfolio company of Riverstone Holdings LLC, owns and operates facilities that
use forest-derived woody biomass and other wood waste residues to produce homegrown, renewable
energy. It also owns facilities that recycle construction and demolition debris. ReEnergy was formed in
2008 by affiliates of Riverstone Holdings LLC and a senior management/co-investor team comprised of
experienced industry professionals. ReEnergy operates in six states, employs approximately 315 people,
and owns and/or operates eight energy production facilities with the combined capacity to generate 325
megawatts of energy. To find out more, visit www.reenergyholdings.com.