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Land owner

Owner of the property


This is a contractual agreement allowing the lessee (user) to pay the lessor (owner) for use of an asset.

Leasing a rooftop

A vacant or unused rooftop can be leased to an investor to produce solar energy.

Legal advice

Professional legal counsel that offers advice regarding all aspects of a company. In terms of the PV industry, this includes knowledge on fiscal matters, feed-in-tariffs, contractual commitments, etc.


Expanding and utilizing a PV are regulated by laws, which in turn effect the feed-in-tariffs.

Letting a rooftop

See Leasing a Rooftop

Levelized Cost

The current value of the total cost to build and operate a generation plant, converted into equal annual payments.


This is a type of radiation that is visible to the human eye. Light sources are called radiants.

Lightning protection

These are measures that are taken to prevent lightning strikes. Typically, solar plants do not increase the risk of a lightning strike.

Liquid Collector

This is a medium-temperatured solar thermal collector, mostly used in water heating.

Liquefied Petroleum Gas (LPG)

This is a group of hydrocarbon-based gases derived from crude oil refining. These gases are usually liquefied through pressurization.

Liquidity management

The organization of credit availability and money supply of banks.

Liquidity planning

Ensuring solvency, which can be done through having a financial plan.


Energy and power requirements of users in the electric power system.

Low-Temperature Collectors

Metallic or non-metallic solar thermal collectors that tend to operate under temperatures of 110 degrees Fahrenheit. They also use pumped air or liquid as the heat transfer medium.