Sierra Geothermal Reports Year-End 2009 Financial Results

Sierra Geothermal Power Corp. (SGP) (TSX VENTURE:SRA) today announced the
release of its financial results for the year ended December 31, 2009.


For the year ended December 31, 2009, SGP reported a net loss of $2,954,675 or
($0.03) per share compared to a net loss of $3,930,023 or ($0.06) per share for
the year ended December 31, 2008.


As of December 31, 2009, SGP had cash and short-term investments of $8,260,320
and working capital of $6,664,549 compared to cash and short-term investments of
$3,777,687 and working capital of $4,039,809 as at December 31, 2008.


The full text of the Company's audited financial statements and management's
discussion and analysis is available on the SEDAR website at www.sedar.com.


About Sierra Geothermal Power Corp.

Sierra is a Vancouver-based geothermal energy company focused on the exploration
and development of clean, sustainable power in Western North America. Sierra has
100% control over its portfolio of geothermal properties in Nevada, California
and British Columbia. Sierra's projects have a combined total estimated capacity
of almost 400MW. One megawatt (MW) is enough to power 800 homes.
www.sierrageopower.com.


On behalf of the Board of Directors

Gary Thompson, P.Geo, President, Chief Executive Officer and Director

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION 

This news release may contain forward-looking statements. All statements, other
than statements of historical fact, included or incorporated by reference in
this news release are forward-looking statements, including, without limitation,
statements regarding activities, events or developments that Sierra expects or
anticipates may occur in the future. Forward-looking statements can be
identified by the use of forward-looking words such as "may", "would", "could",
"expect", "intend", "plan", "estimate", "anticipate", "believe" or "continue" or
similar words or the negative thereof. Forward-looking statements in this news
release include statements about SGP projects having a combined total estimated
capacity of almost 400MW.


There can be no assurance that the plans, intentions or expectations upon which
these forward-looking statements are based will occur. Readers are cautioned not
to place undue reliance on these forward-looking statements, which are not a
guarantee of performance and are subject to a number of uncertainties and other
factors that could cause actual results to differ materially from those
expressed or implied by such forward-looking statements. These factors include
general economic and market conditions, changes in the law, actions of
competitors, drill results and other changes in circumstance, and Sierra's
ability to implement business strategies and pursue its business plan. In
addition, all forward-looking statements involve risks and uncertainties,
including the risks and uncertainties detailed in SGP's filings with the
applicable Canadian securities commissions, copies of which are available at
www.sedar.com. We urge you to carefully consider these factors.


All of the forward-looking statements contained in this news release are
expressly qualified in their entirety by this cautionary statement. The
forward-looking statements included in this news release are made as of the date
of this news release and Sierra undertakes no obligation to publicly update such
forward-looking statements to reflect new information, subsequent events or
otherwise, except as required by law.