PBW rebalance for 9/30/08 WilderHill Clean Energy Index - ECO "Quarterly Rebalance effective for the open on September 30, 2008." ---------- <pre>Ticker Component Name Old Share Weight New Share Weights ABAT Advanced Battery Technologies Inc 1835018 519236 AMAT Applied Materials Inc 470707 538391 AMSC American Superconductor Corp 239775 385218 APD Air Products & Chemicals Inc 80857 111594 ARGN Amerigon Inc 262114 248267 ASTI Ascent Solar Technologies Inc 192677 240466 BCON Beacon Power Corp 1233998 1454719 BLDP Ballard Power Systems Inc 2709988 2353672 CBAK China BAK Battery Inc 2046444 2243894 COMV Comverge Inc 722359 297333 CPL CPFL Energia SA 136134 136263 CPN Calpine Corp 386201 578171 CREE Cree Inc 397431 319446 CZZ Cosan Ltd 644014 1027360 ELON Echelon Corp 821446 591566 EMKR Emcore Corp 1435632 1716569 ENER Energy Conversion Devices Inc 139656 147887 ESLR Evergreen Solar Inc 946774 1510581 FCEL FuelCell Energy Inc 1358523 1222368 FSLR First Solar Inc 37854 42647 FSYS Fuel Systems Solutions Inc 283903 158364 GU Gushan Environmental Energy Ltd 668583 1320158 HEV Ener1 Inc 1382326 1131564 HTM US Geothermal Inc 930727 1060368 IDA Idacorp Inc 286191 259363 IRF International Rectifier Corp 468435 432549 ITRI Itron Inc 98932 88020 JASO JA Solar Holdings Co Ltd 572905 668635 MDTL Medis Technologies Ltd 684273 522318 MXWL Maxwell Technologies Inc 817156 593774 NBF Nova Biosource Fuels Inc 3542769 Deletion OMG OM Group Inc 245851 317855 OPTT Ocean Power Technologies Inc 241375 250030 ORA Ormat Technologies Inc 207846 223406 PANL Universal Display Corp 753205 616955 PEIX Pacific Ethanol Inc 1126419 1257293 PLUG Plug Power Inc 4497178 875727 POR Portland General Electric Co 373557 327447 QTWW Quantum Fuel Systems Technologies 934688 1431065 RBCN Rubicon Technology Inc 426243 214922 RZ Raser Technologies Inc 1197689 1912424 SOL Renesola Ltd 508720 613009 SPIR Spire Corp 162705 145834 SPWR Sunpower Corp 135587 99548 SQM Sociedad Quimica y Minera de Chile SA 197021 272011 STP Suntech Power Holdings Co Ltd 265408 218646 TSL Trina Solar Ltd 288332 318419 ULBI Ultralife Corp 195420 167480 VLNC Valence Technology Inc 2651730 2571736 VRNM Verenium Corp 1233998 830288 VSE VeraSun Energy Corp 2004121 4743082 WFR MEMC Electronic Materials Inc 146302 277154 YGE Yingli Green Energy Holding Co Ltd 587618 715779 ZOLT Zoltek Cos Inc 389730 510884</pre> Additions None Deletions NBF Nova Biosource Fuels Inc big increases: VSE 237% GU 200% AMSC 60% ESLR 60% CZZ 59% QTWW 53% SQM, ZOLT, CPN, APD big decreases PLUG ABAT NBF gone