Levelised energy cost (LEC, also commonly abbreviated as LCOE) is the price at which electricity must be generated from a specific source to break even. It is an economic assessment of the cost of the energy-generating system including all the costs over its lifetime: initial investment, operations and maintenance, cost of fuel, cost of capital, and is very useful in calculating the costs of generation from different sources.

For Solar Photovoltaics See also

• Review of Solar Levelized Cost
• Levelised Cost of Electricity Literature Review
• Lifespan and Reliability of Solar Photovoltaics - Literature Review
• Photovoltaics energy: Improved modeling and analysis of the levelized cost of energy (LCOE) and grid parity – Egypt case study