Nasdaq Clean Edge Green Energy Index (CELS) Semi-Annual Updates

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Clean Edge semi-annually re-evaluates and updates the stocks included in the  Nasdaq Clean Edge Green Energy Index (CELS). Here is a list of historical changes with most recent first.

March 2018

(Includes intra-quarter changes.)

Additions:  Albermarle (NYSE: ALB); Ameresco (NYSE: AMRC); DAQO New Energy (NYSE: DQ); Enphase Energy (NASDAQ: ENPH); Littlefuse (NASDAQ: LFUS); SQM (NYSE: SQM); and TerraForm Power (NASDAQ: TERP).

Removals:  Green Plains (NASDAQ: GPRE); Pacific Ethanol (NASDAQ: PEIX); 8Point3 Energy Partners (NASDAQ: CAFD); JA Solar Holdings (NASDAQ: JASO); Silver Spring Networks, Inc. (SSNI); TerraForm Global, Inc. (GLBL).

September 2017

(Includes intra-quarter changes.)

Additions:  EnerSys (NYSE:ENS) and Integrated Device Technology  Inc (NASDAQ:IDTI).

Removal:  EnerNOC, Inc. (NASDAQ:ENOC).

March 2017

Additions:  NRG Yield, Inc. (NYLD); TPI Composites, Inc. (TPIC).

Removals:  FuelCell Energy, Inc. (FCEL); IXYS Corporation (IXYS).

September 2016

(Includes intra-quarter changes.)

Addition: Vivint Solar (VSLR).

Removals:  SolarCity Corporation (SCTY); Linear Technology Corporation (LLTC); Trina Solar Limited (TSL); Amyris (AMRS); OPower (OPWR); and Saft Groupe SA (SAFT).

March 2016

Additions: Acuity Brands, Inc. (AYI); 8point3 Energy Partners, LP (CAFD); FuelCell Energy, Inc. (FCEL); TerraForm Global, Inc. (GLBL); and Sunrun, Inc. (RUN).

Removals:  Enphase Energy, Inc. (ENPH); Solazyme, Inc. (SZYM); Codexis, Inc. (CDXS); ITC Holdings Corp. (ITC); China Ming Yang Wind Power Group Limited (MY); and PowerSecure International, Inc. (POWR).

September 2015

Additions: Codexis, Inc. (CDXS); Ormat Technologies, Inc. (ORA); and SolarEdge Technologies, Inc. (SEDG).

Removals:  FuelCell Energy, Inc. (FCEL); Yingli Green Energy Holding (YGE); and EMCORE Corporate (EMKR).

March 2015

Additions: Abengoa Yield (ABY); EMCORE Corporation (EMKR); NextEra Energy Partners (NEP); TerraForm Power (TERP); and Vivint Solar (VSLR).

Removals: Ameresco, Inc.; Capstone Turbine Corporation; ESCO Technologies Inc.; Hydrogenics Corporation; Rubicon Technology, Inc.; Revolution Lighting Technologies, Inc.; and Renesola Ltd.

September 2014

Additions: Ameresco, Inc. (NYSE: AMRC); ESCO Technologies, Inc. (NYSE: ESE) and OPOWER, Inc. (NYSE: OPWR).

Removals: Hanwha SolarOne Co. Ltd. (NASDAQ: HSOL); Quantum Fuel Systems Technologies Worldwide, Inc. (NASDAQ: QTWW) and Real Goods Solar, Inc. (NASDAQ: RGSE).

March 2014

Additions: Ballard Power Systems, Inc. (NASD: BLDP); Hanwha SolarOne Co.; Ltd. (NASD: HSOL); Hydrogenics Corporation (NASD: HYGS); IXYS Corporation (NASD: IXYS); China Ming Yang Wind Power Group Limited (NYSE: MY); Pattern Energy Group Inc. (NASD: PEGI); Pacific Ethanol, Inc. (NASD: PEIX); Plug Power, Inc. (NASD: PLUG); Quantum Fuel Systems Technologies Worldwide, Inc. (NASD: QTWW) and Real Goods Solar, Inc. (NASD: RGSE).

Removals: Aixtron SE (NASD: AIXG) and Ameresco, Inc. (NASD: AMRC).

March 2013

Additions: Canadian Solar Inc. (NASDAQ: CSIQ); EMCORE Corporation (NASDAQ: EMKR); FuelCell Energy, Inc. (NASDAQ: FCEL); Green Plains Renewable Energy, Inc. (NASDAQ: GPRE); Renewable Energy Group, Inc. (NASDAQ: REGI); Renesola Ltd. (NYSE: SOL) and Suntech Power Holdings Co.; LTD. (NYSE: STP).

Removals: Ameresco, Inc. (NYSE: AMRC); Ormat Technologies, Inc. (NYSE: ORA) and Rubicon Technology, Inc. (NASDAQ: RBCN).

September 2012

Additions: Enphase Energy, Inc. (NASDAQ: ENPH) and KiOR, Inc. (NASDAQ: KIOR).

Removals: A123 Systems, Inc. (NASDAQ: AONE); Capstone Turbine Corporation (NASDAQ: CPST); Canadian Solar Inc. (NASDAQ: CSIQ); Echelon Corporation (NASDAQ: ELON); FuelCell Energy, Inc. (NASDAQ: FCEL); Gevo, Inc. (NASDAQ: GEVO); Green Plains Renewable Energy, Inc. (NASDAQ: GPRE); IXYS Corporation (NASDAQ: IXYS); JA Solar Holdings; Co.; Ltd. (NASDAQ: JASO); LDK Solar Co. Ltd. (NYSE: LDK); O2Micro International Limited (NASDAQ: OIIM); Renesola Ltd. (NYSE: SOL); Suntech Power Holdings Co.; Ltd. (NYSE: STP); and STR Holdings, Inc. (NYSE: STRI).

March 2012

Additions: Advanced Energy Industries, Inc. (NASDAQ: AEIS) and FuelCell Energy, Inc. (NASDAQ: FCEL).

Removals: Aixtron SE (NASDAQ: AIXG); Codexis, Inc. (NASDAQ: CDXS); Hanwha SolarOne Co.; Ltd. (NASDAQ: HSOL); JinkoSolar Holding Company Limited (NYSE: JKS); KiOR, Inc. (NASDAQ: KIOR); Metabolix, Inc. (NASDAQ: MBLX); SatCon Technology Corporation (NASDAQ: SATC); Vicor Corporation (NASDAQ: VICR); and Valence Technology, Inc. (NASDAQ: VLNC).

September 2011

Additions: Amyris, Inc. (NASDAQ: AMRS); Elster Group SE (NYSE: ELT); IXYS Corporation (NASDAQ: IXYS); KiOR, Inc. (NASDAQ: KIOR); and Solazyme, Inc. (NASDAQ: SZYM).

Removals: Advanced Battery Technologies, Inc. (NASDAQ: ABAT); Active Power, Inc. (NASDAQ: ACPW); Amtech Systems, Inc. (NASDAQ: ASYS); Ballard Power Systems Inc. (NASDAQ: BLDP); Broadwind Energy, Inc. (NASDAQ: BWEN); EMCORE Corporation (NASDAQ: EMKR); Energy Conversion Devices, Inc. (NASDAQ: ENER); FuelCell Energy, Inc. (NASDAQ: FCEL); Ener1, Inc. (NASDAQ: HEV); SemiLEDS Corporation (NASDAQ: LEDS); and China Ming Yang Wind Power Group Limited (NYSE: MY).

March 2011

Additions: Advanced Analogic Technologies, Inc. (NASDAQ: AATI); Active Power, Inc. (NASDAQ: ACPW); Ameresco, Inc. (NYSE: AMRC); Amtech Systems, Inc. (NASDAQ: ASYS); Ballard Power Systems Inc. (NASDAQ: BLDP); Codexis, Inc. (NASDAQ: CDXS); Capstone Turbine Corporation (NASDAQ: CPST); EMCORE Corporation (NASDAQ: EMKR); FuelCell Energy, Inc. (NASDAQ: FCEL); Gevo, Inc. (NASDAQ: GEVO); JinkoSolar Holding Co.; Ltd. (NYSE: JKS); SemiLEDs Corporation (NASDAQ: LEDS); China Ming Yang Wind Power Group Limited (NYSE: MY); and Valence Technology, Inc. (NASDAQ: VLNC).

Removals: Comverge, Inc. (NASDAQ: COMV); IXYS Corporation (NASDAQ: IXYS); and PowerSecure International, Inc. (NASDAQ: POWR).