Here’s a broad, inclusive list of electricity sources, including both common and niche options from various regions and technologies. If you’d like, I can tailor this list to a specific country or context.
- Fossil fuels
- Coal
- Natural gas
- Oil
- Peat (in some regions)
- Gasified coal or syngas in some plants
- Nuclear
- Uranium-fueled light-water reactors
- Fast-neutron reactors (breeder concepts in research/several countries)
- Small modular reactors (SMRs) in development or early deployment
- Renewable energy
- Solar
- Photovoltaic (PV) solar panels
- Concentrating solar power (CSP)
- Wind
- Onshore wind turbines
- Offshore wind turbines
- Hydropower
- Large hydroelectric dams
- Run-of-river hydro
- Pumped-storage hydroelectricity
- Biomass
- Direct combustion of biomass
- Biogas from anaerobic digestion
- Biomass power plants using wood, agricultural waste, or dedicated energy crops
- Geothermal
- Hydrothermal or enhanced geothermal systems (EGS)
- Ocean/Marine
- Tidal power
- Wave energy
- Ocean thermal energy conversion (OTEC)
- Solar
- Alternative and emerging technologies
- Waste-to-energy plants
- Hydrogen generation with surplus electricity (power-to-hydrogen, potentially reconverted later)
- Hydrogen-capable fuel cells (as a generation or backup option in some microgrids)
- Synthetic fuels or biofuels used in turbine-based generation
- Other and specialized sources
- Small-scale generators (diesel, gasoline, or propane) for backup or off-grid needs
- Battery storage systems (as energy storage rather than a primary generation source, but enabling generation from intermittent sources)
- Combined heat and power (CHP) or cogeneration facilities that produce electricity and useful heat from the same energy source (often natural gas or biomass)
Notes and context
- In most large-scale grids, electricity is produced by converting primary energy sources (fossil fuels, nuclear, renewables) into electrical energy and transporting it through transmission and distribution networks.
- The relative share of each source varies dramatically by country, regulatory environment, resource availability, and policy goals (e.g., decarbonization efforts).
- Some regions rely more on a single dominant source (e.g., hydropower in certain countries, coal or gas in others), while others maintain a diversified mix.
If you want, I can pare this down to:
- The typical global mix as of recent years, with approximate shares
- A country-specific list (e.g., United States, Germany, India, China, or a smaller nation)
- A focus on technologies available for residential or microgrid-scale generation
- A timeline of how generation sources have shifted over the past decade and what might drive future changes
