Quick facts (Figures for 2023; Sources: BSW Solar, UBA, AGEB) Number of solar arrays installed: 3.7 million Total capacity installed: 81 GWp Output: 61 TWh Projected expansion: 215 GWp in 2030 Share in gross power production: 11.9
By the end of 2023, coal''s share of electricity-generation capacity was 15% and coal accounted for about 16% of total utility-scale electricity generation. The share of natural gas-fired
In 2028, renewable energy sources account for 42% of global electricity generation, with the wind and solar PV share making up 25%. In 2028, hydropower remains the largest renewable electricity source. However,
In 2025, renewables surpass coal to become the largest source of electricity generation. Wind and solar PV each surpass nuclear electricity generation in 2025 and 2026 respectively. In 2028, renewable energy sources account for
In 2023, China was the country with the largest energy production from solar, with some 584 terawatt hours. The United States ranked second by a wide margin, with less than half of China''s production.
What happened in the past year? China added almost twice as much utility-scale solar and wind power capacity in 2023 than in any other year. By the first quarter of 2024, China''s total utility-scale solar and wind capacity

While the contribution of solar energy to global electricity production remains generally low at 3.6%, it has firmly established itself among other renewable energy technologies, comprising nearly 31% of the total installed renewable energy capacity in 2022 (IRENA, 2023).
The share of solar PV and wind in global electricity generation is forecast to double to 25% in 2028 in our main case. This rapid expansion in the next five years will have implications for power systems worldwide.
While China, the US, and Japan are the top three installers, China's relative contribution accounts for nearly 37% of the entire solar installation in 2022. Fig. 1 illustrates the contribution of energy sources to both electricity generation and total installed power capacity by 2050.
Global solar PV investments in capacity additions increased by over 20% in 2022 and surpassed USD 320 billion, marking another record year. Solar PV comprised almost 45% of total global electricity generation investment in 2022, triple the spending on all fossil fuel technologies collectively.
As shown in Fig. 1, by 2050, solar PV technology is projected to have the largest installed capacity (8519 GW), making it the second most prominent generation source behind wind power, and it is expected to generate approximately 25% of total electricity needs by 2050. Table 1. Global installed solar capacity from 2013 to 2022. Table 2.
China continues to lead in terms of solar PV capacity additions, with 100 GW added in 2022, almost 60% more than in 2021. The 14th Five-Year Plan for Renewable Energy, released in 2022, provides ambitious targets for deployment, which should drive further capacity growth in the coming years.
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.