energysources

Energysources is a term used to describe the origins of energy used for electricity, heating, and transportation. Energy sources are broadly grouped into renewable and nonrenewable categories. Renewable sources include solar, wind, hydroelectric, geothermal, biomass, and ocean energy. These sources are naturally replenished and can reduce carbon emissions when replacing fossil fuels, though they can face intermittency, geographic dependence, and land-use considerations.

Nonrenewable sources include fossil fuels—coal, oil, and natural gas—and, in many contexts, nuclear energy. Fossil fuels are dense energy carriers but emit greenhouse gases when burned, contributing to climate change. Nuclear energy provides large-scale low-carbon electricity but raises concerns about radioactive waste, safety, and high capital costs.

Energy systems also rely on technologies such as energy storage, grid integration, and demand management to address intermittency and reliability. Environmental and social impacts vary by source and location, influencing policy decisions, costs, and public acceptance.

Global trends emphasize decarbonization, energy security, and access to affordable energy, with ongoing innovation in efficiency, storage, and low-emission generation.