alternative energy

Solar, wind, geothermal

Alternative energy refers to power sources that don't rely on fossil fuels like coal, oil, or natural gas.

The term typically encompasses solar, wind, hydroelectric, geothermal, and nuclear power.

What counts as "alternative" shifts over time—once alternative sources become mainstream, they're often just called renewable or clean energy.

The campus runs entirely on alternative energy.

hydro

hydroelectric

Generated by flowing water

run-of-river · tidal power · hydropower · penstock · spillway · micro-hydro · barrage · current · water wheel · fish ladder

sustainability

renewable

Capable of restoration

low-carbon · decarbonization · sustainable · eco-friendly · environmental · carbon footprint · greenhouse gas reduction · Paris Agreement · net zero · climate action

wind

wind turbine

Kinetic air energy converter

rotor blade · anemometer · offshore wind · onshore wind · wind power · gust · airflow · horizontal axis · tower · pitch control

bioenergy

biomass

Living material in aggregate

biogas · wood pellet · organic waste · cellulosic · switchgrass · corn ethanol · landfill gas · feedstock · fermentation · gasification

solar

photovoltaic

Light-to-electricity converting

inverter · net metering · irradiance · solar array · rooftop solar · silicon wafer · solar charger · sunlight · kilowatt-hour · solar roof

technology

innovation

Creating something original

transmission · research · breakthrough · efficiency · capacity · infrastructure · microgrid · emerging technology

geothermal

geothermal plant

Station converting underground heat to electricity

magma · volcanic · dry steam · Iceland · reservoir · baseload power

nuclear

nuclear power

Energy from splitting atoms

uranium · thorium · nuclear plant · cooling tower · radioactive · plutonium · chain reaction · containment · spent fuel · tokamak

Categories
Opposites
energy source type

alternative energyfossil fuels

Combustible prehistoric organic deposits

dirty energy · coal · oil · petroleum · coal power

Family

energy, energetic, alternative, alternate, energize, synergy, energizing, alternating, energized

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Positive · Everyday, not technical · Rated G