Clean Edge and Nasdaq's three benchmark clean-tech stock indexes got 2010 off to a good start with the Nasdaq Clean Edge Green Energy Index (CELS) up 4.53%, the Nasdaq OMX Clean Edge Global Wind Energy Index (QWND) gaining 3.37%, and the Nasdaq OMX Clean Edge Smart Grid Infrastructure Index (QGRD) climbing 4.18%.

The overall market also saw gains the first week of the year -- the S&P 500 added 2.68%; Nasdaq was up 2.12%; and the Amex Oil ended the week 4.49% higher.

CELS -- up 4.53% for the week and up 39.13% from a year ago -- tracks U.S.-listed clean-energy companies and is divided into four categories: advanced materials; energy intelligence; energy storage and conversion; and renewable electricity generation and renewable fuels.

In the advanced materials sector, four of the five component companies were in positive territory. Energy intelligence saw 15 of its 20 components gain ground. Energy storage and conversion had all 10 components gaining. For renewable electricity and fuels, 13 components were up and two lost ground.

CELS' best performer for the week was Chinese solar cell maker Solarfun Power Holdings ( SOLF), gaining 32.11%. Rounding out the top five CELS performers were fuel cell developer Ballard Power Systems ( BLDP), up 22.75%; solar wafer manufacturer ReneSola ( SOL), rising 21.01%; thin-film solar developer Energy Conversion Devices ( ECD), gaining 18.73%; and solar module manufacturer Evergreen Solar ( ESLR), up 18.54%.

CELS' worst performer last week was wind energy product and service provider Broadwind Energy ( BWEN), declining 9.27%. Other worst performers included electronic materials maker Rubicon Technology ( RBCN), falling 4.73%; semiconductor developer IXYS ( IXYS), losing 4.59%; geothermal developer Ormat Technologies ( ORA), down 2.80%; and electronic power management company O2Micro ( OIM), losing 1.91%.

QWND -- up 3.37% last week and up 34.95% in the last 12 months -- includes companies that are primarily manufacturers, developers, distributors, installers and users of energy derived from wind sources. Of QWND's 24 pure play components, 17 saw gains, six lost ground and one ended the week unchanged.

QWND's best pure play performer for the week was wind energy developer PNE Wind, gaining 15.32%. Other top pure-play performers included wind turbine maker REpower Systems ( RPW), climbing 13.68%; independent wind power producer Theolia ( TEO), up 8.50%; wind turbine supplier Nordex ( NDX1), up 8.21%; and renewable energy developer Gamesa ( GAM), up 7.63%.

QWND's worst pure-play performers were wind energy product and service provider Broadwind Energy, declining 9.27%; wind power plant developer China WindPower Group, down 3.37%; composite material maker Gurit Holding ( GUR), losing 2.59%; wind farm operator Japan Wind Development, falling 2.53%; and gearbox and drive train maker Hansen Transmissions International ( HSN), declining 2.29%.

QGRD -- up 4.18% last week -- is composed of companies that are primarily involved in the electric grid; electric meters, devices, and networks; energy storage and management; and enabling software used by the smart grid and electric infrastructure sector. Last week, 14 pure play QGRD components saw gains and thre lost ground.

QGRD's best pure-play performer was energy management firm Comverge ( COMV), gaining 12.72%. Rounding out the top five pure play performers were wire and cable product maker General Cable ( BGC), rising 12.37%; energy management company Enernoc ( ENOC), up 10.23%; communication network equipment provider RuggedCom ( RCM), climbing 8.55%; and electricity distribution and automation developer Schneider Electric ( SU), growing 6.34%.

QGRD's worst performers included electric grid service provider Pike Electric ( PIKE), losing 2.80%; power conversion system developer SatCon Technology ( SATC), down 2.48%; utility network provider Esco Technologies ( ESE), retreating 0.84%; transmission grid operator ITC Holdings ( ITC), up 0.25%; and transformer manufacturer Jinpan International ( JST), up 1.99%.

This information is not intended to be used as a guide to investing, and the authors make no guarantees that any investments based on the information contained herein will benefit you in specific applications, owing to the risk that is involved in investing of almost any kind. For more on Clean Edge's stock indexes - including methodology, components, historical performance, financial products and licensing information, please visit www.cleanedge.com/ceindex.
Clean Edge, Inc., founded in 2000, is the world's first research and publishing firm devoted to the clean-tech sector. The company, via its publications, events, and online services, helps companies, investors, and governments understand and profit from clean technologies. Clean Edge, with offices in the San Francisco Bay Area and Portland Oregon, offers insight and intelligence on emerging clean-tech trends, opportunities, and challenges. The company publishes a range of reports including the annual Clean Energy Trends and Clean Tech Job Trends report series; hosts the annual Clean-Tech Investor Summit (along with IBF); maintains a number of benchmark clean-tech stock indices with NASDAQ OMX including CELS, QGRD, and QWND; and produces Clean Edge Jobs, a leading online jobs board for clean-tech job seekers, employers, and recruiters. To keep abreast of the latest clean-tech news; access industry reports; learn more about our services; or sign up for our free e-newsletters; visit CleanEdge.com.