In 2025, standard residential solar panels produce between 390-500 watts of power, with high-efficiency models reaching 500+ watts. However, the actual energy output depends on multiple factors including your location, roof orientation, weather conditions, and system design. Ember (2026); Energy Institute - Statistical Review of World Energy (2025) – with major processing by Our World in Data This dataset contains yearly electricity generation, capacity, emissions, imports and demand data for European countries. You can find more about Ember's methodology in this. Here, energy refers to primary energy using the substitution method. Annual average electricity generation per person, measured in kilowatt-hours. Useful thermal output by energy source: Total combined heat and power (all sectors) Table 3. By comparison, we expect utility-scale solar capacity to grow. The latest electricity demand, generation, capacity and CO2 data by country, available freely and easily to help others speed up the electricity transition. The latest monthly data on. A household can generate a substantial amount of electricity from solar power, typically between 5,000 and 10,000 kilowatt-hours annually, depending on various factors such as location, roof size, and solar panel efficiency.