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• Landis+Gyr - Energy - Metering Page.

• Lantronix - Energy - Communications Systems Page.  Locations: Irvine, California.

• Large Public Power Council (LPPC) - Energy - Public Power Page. Locations: Alexandria, Virginia.

• Lawrence Berkeley National Laboratory (Berkeley Lab) - Energy - Research Page.

• Lawrence Livermore National Laboratory (LLNL) - Energy - Research Page.

• LDK Solar - China - Solar Page. 

• Leadership in Energy and Environmental Design (LEED) - Energy - Efficiency Page.

• Legacy Energy Group - Energy - ESCOs Page.

• Legal - Energy - Legal Page.

• Leonardo Energy - Energy - General Resources Page.

• Leviton - Energy - Home Automation Page.

• (The) Liberty Consulting Group - Energy - Consultants Page.

• Lighting The Way: Toward a Sustainable Energy Future (Report) - Energy Research Page.

• Lightspeed Venture Partners - Energy - Capital Page.  

• Lightstat - Energy - Home Automation Page.

• Lightmedia Interactive - Energy - Industry Suppliers Page.

• Lightwave Power - Energy - Solar Page.  Locations: Cambridge, Massachusetts.

• Lime Energy - Energy - Building Automation.  Locations: Chicago, Illinois.

• LiveFuels, Inc. - Energy - Biofuels Page.

• LODESTAR - Energy - Industry Suppliers - Software.

• LonMark - Energy - Site Automation.

• Louisville Gas and Electric (LG&E) - Energy - Investor Owned Utilities Page.  Locations: Kentucky.

• LPP Combustion - Energy - Natural Gas Page.  Locations: Columbia, Maryland.

• LS9 - Energy - Bioenergy.

• Lucent - see Alcatel-Lucent - Energy - Industry - Suppliers.

• Lucid Design Group - Energy - Building Automation.  Locations: San Francisco, California.

• LumaSense Technologies - Energy - Monitoring Page.  *

• Lumenergi - Energy - Lighting Companies Page.  Locations: Newark, California.

• Luminant - Energy - Generation Page.  Locations: Dallas, Texas.

• Luminus Devices - Energy - Efficiency Page.

See something that should be changed or added to this page, or a bad link - email me to make a change.

Paul J. Feldman