L
- LaaR—Load acting as a resource (ERCOT category) (electricity)
- LBNL—Lawrence Berkeley National Laboratory (US)
- LDC—Local Distribution Company (electricity)
- LEVP—Low Emissions Vehicle Program
- LHV—lower heating value
- LIHEAP—Low Income Home Energy Assistance Program
- LIPA—Long Island Power Authority (US) (electricity)
- LMP—Locational marginal price/pricing. See explanation in electricity markets.
- LNG—Liquified Natural Gas
- LODF—Line Outage Distribution Factor (electricity)
- LOLE—Loss of Load Expectation (electricity)
- LPG—liquefied petroleum gas
- LPN—Lender Participation Notes
- LRG—liquefied refinery gases
- LSE—Load serving entity
- LSF—Load Shift Factor
- lsfo—Low sulfur fuel oil
- LWR—light water reactor
Read more about this topic: List Of Energy Abbreviations