Geothermal direct use and ground-source heat pumps: Overview
Warming homes and greenhouses with heat stored in the ground
What this tile covers Earth heat used directly, or shallow ground heat moved by heat pumps. Share of use 0.1% share of world energy supply (2024)Share of world total energy supply captured or extracted by each method, 2024 (latest year where noted). Denominator is the Energy Institute Statistical Review 2025 total of 592.2 EJ (physical energy content method); electricity from wind, solar, hydro and geothermal is counted at output, nuclear at reactor heat. Heat and biomass flows outside EI's total are set against the same 592.2 EJ. Direct geothermal heat 245 TWh = 0.882 EJ of 592.2 EJ (calculated). Outside EI's total. Unclear how fully ground-source heat pumps are included. Source: Renewables 2025 Global Status Report: Geothermal, REN21.
Key facts
| Output | Heat and cooling |
Included from the reference tables
- District heating, greenhouses, fish farming, spas, drying
- Ground-source heat pumps
Also in Geothermal
GeP Geothermal power plantsAGS Advanced geothermalExplore paths from here
More on this tile in the tabs above: efficiency, techniques, resources and labour, impact on the biosphere.