But other types of solar technology exist—the two most common are solar hot water and concentrated solar power. Solar hot water. Solar hot water systems capture thermal energy from the sun and use it to heat
Photovoltaic (PV) technologies – more commonly known as solar panels – generate power using devices that absorb energy from sunlight and convert it into electrical energy through semiconducting materials. These devices, known as
Electricity generation. In 2023, net generation of electricity from utility-scale generators in the United States was about 4,178 billion kilowatthours (kWh) (or about 4.18 trillion kWh). EIA
Commercial concentrated solar power plants were first developed in the 1980s. Since then, as the cost of solar panels has fallen, grid-connected solar PV systems'' capacity and production has doubled about every three years. Three
OverviewSolar photovoltaic powerSolar potentialHistoryConcentrated solar power (CSP)Government supportSee alsoFurther reading
In the United States, 14,626 MW of PV was installed in 2016, a 95% increase over 2015 (7,493 MW). During 2016, 22 states added at least 100 MW of capacity. Just 4,751 MW of PV installations were completed in 2013. The U.S. had approximately 440 MW of off-grid photovoltaics as of the end of 2010. Through the end of 2005, a majority of photovoltaics in the United States was
Solar photovoltaic (PV) power generation is the process of converting energy from the sun into electricity using solar panels. Solar panels, also called PV panels, are combined into arrays in a PV system. PV systems
The range of the Base Year estimates illustrate the effect of locating a utility-scale PV plant in places with lower or higher solar irradiance. The ATB provides the average capacity factor for 10 resource categories in the United States,

Solar energy's share of total U.S. utility-scale electricity generation in 2023 was about 3.9%, up from less than 0.1% in 1990. In addition, EIA estimates that at the end of 2023, the United States had 47,704 MW of small-scale solar PV generation capacity, and that about 74 billion kWh were generated by small-scale PV systems.
In 2023, net generation of electricity from utility-scale generators in the United States was about 4,178 billion kilowatthours (kWh) (or about 4.18 trillion kWh). EIA estimates that an additional 73.62 billion kWh (or about 0.07 trillion kWh) were generated with small-scale solar photovoltaic (PV) systems.
In 2023, utility-scale solar power generated 164.5 terawatt-hours (TWh), or 3.9% of electricity in the United States. Total solar generation that year, including estimated small-scale photovoltaic generation, was 238 TWh.
EIA estimates that about 0.07 trillion kWh of electricity were generated with small-scale solar photovoltaic systems. 1 Natural gas was the top source—about 43%—of U.S. utility-scale electricity generation in 2023. Natural gas is used in steam turbines and gas turbines to generate electricity.
There are two main types of solar energy technologies—photovoltaics (PV) and concentrating solar-thermal power (CSP). You're likely most familiar with PV, which is utilized in solar panels. When the sun shines onto a solar panel, energy from the sunlight is absorbed by the PV cells in the panel.
Utility-scale solar (yellow) and small-scale solar (orange) have shown the largest percentage growth since 2010 in renewable-source electricity generation. Solar energy deployment increased at a record pace in the United States and throughout the world in 2008, according to industry reports.
The European energy storage market is booming with Germany leading residential adoption (+58% YoY) thanks to €500/kWh subsidies. Italy's new tax credits drive 5.2GWh commercial deployments, while UK grid-scale projects exceed 8GWh with 2-hour duration systems. Key selection criteria: German-certified safety (VDE-AR-E 2510), 10+ year warranties, and VPP readiness. Top-performing products include Sonnen's hybrid inverters (98% efficiency) and BYD's Blade Battery (12,000 cycles @80% DoD). For snowy regions like Scandinavia, consider Huawei's -30°C compatible systems. France mandates carbon footprint declarations - Sungrow's ISO-14067 certified solutions gain preference.
For European homeowners, 5-10kWh systems with 3-phase compatibility are ideal. Top picks: 1) Tesla Powerwall 3 (13.5kWh, 97% round-trip efficiency) for smart home integration; 2) LG Chem RESU Prime for compact urban installations; 3) SMA Sunny Boy Storage for retrofit projects. Critical features: EU-made battery cells (exempt from CBAM tariffs), dynamic tariff optimization (like Octopus Energy integration), and fire-safe LiFePO4 chemistry. Southern Europe demands 85%+ depth of discharge capability, while Nordic markets require -25°C operation. Always verify CEI 0-21 compliance for Italian grid connection and EnWG certification for German feed-in.