Professional solar ROI calculator for PV systems, battery storage, and EV charging. Calculate payback period, NPV, IRR, and comprehensive financial analysis for your solar investment.
IEA PVPS has released its latest Trends in Photovoltaic Applications 2025 report, revealing that the world's cumulative installed PV capacity surpassed 2 260 GW by the end of 2024, marking a 29% year-on-year increase.
Solar photovoltaic technology will maintain its position as the world's most cost-competitive power generation source through 2025, with single-axis tracker systems in the Middle East and Africa leading at US$37/Megawatt hour (MWh).
Renewable Energy Has Achieved Cost Parity: Utility-scale solar ($28-117/MWh) and onshore wind ($23-139/MWh) now consistently outcompete fossil fuels, with coal costing $68-166/MWh and natural gas $77-130/MWh, making renewables the most economical choice for new electricity.
Cost-benefit analysis offers a structured approach to measure the viability and profitability of solar investments by comparing the initial costs with long-term benefits, such as reduced energy bills, tax incentives, and environmental impacts.
Across the EU, photovoltaics surpassed coal-fired power generation for the first time in 2025. Wind power was the strongest net electricity producer in Germany, although production was 3. 2 percent lower than in the previous year at 132 terawatt hours (TWh) due to poorer wind.