geothermal

magma

Molten rock underground

• lavaErupted liquid stone
• calderaCollapsed volcanic summit basin
• fumaroleVolcanic gas vent

hot springs · geyser · hydrothermal · sulfur · crater · eruption · pyroclastic · vent · Old Faithful · Yellowstone

mantle

Covering or wrap

• crustHard outer layer
• coreCentral essential portion
• tectonicsStudy of crustal deformation

lithosphere · subduction · fault · hotspot · plume · gradient · reservoir · aquifer · permeable · bedrock

heat pump

Thermal energy transfer device

• power plantFacility producing electrical energy
• electricityEnergy from charged particles
• renewableCapable of restoration

baseload · dry steam · generation · megawatt · turbine · grid · capacity · efficiency · exploitation · resource

renewable

Capable of restoration

• cleanFree of soil
• low-emissionProducing few pollutants
• carbon-neutralNet-zero emissions state

green · baseload · reliable · continuous · environmental · climate · decarbonization · alternative · sustainable · footprint

borehole

Drilled underground passage

• heat exchangerTransfers thermal energy between media
• radiantEmitting light or joy
• underfloorBeneath the flooring

antifreeze · wellhead · piping · HVAC · temperature · circulation · domestic · greenhouse · aquaculture · spa

• HVACair conditioner, furnaces, furnace, ductwork, central air
• energy efficiencyenergy efficiency, energy management, energy savings, energy audits, energy monitoring
• energyelectricity, power, oil, fuel, gas
• resourcesresources, money, natural resources, human resources, financial resources
• clean energysolar power, solar, wind power, wind, solar panels
• earth scienceatmosphere, earthquake, geology, volcano, crust