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Demand Response
Country and regional highlights
Notable progress to advance demand response is being made
Activity
Demand response markets are expanding, but greater effort is needed to align with the Net Zero Scenario
Technology deployment
Enabling technologies offer high flexibility potential, although deployment is still lagging
Innovation
Innovative solutions and approaches are being tested to expand residential participation in demand response
Policy
International collaboration
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Grid-scale Storage
Country and regional highlights
Major markets target greater deployment of storage additions through new funding and strengthened recommendations
Technology deployment
Pumped-storage hydropower is still the most widely deployed storage technology, but grid-scale batteries are catching up
Innovation
While innovation on lithium-ion batteries continues, further cost reductions depend on critical mineral prices
Policy
Investment
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Solar PV
…is added annually through the end of this decade. Even so, low costs, faster permitting and broad social acceptance are set to continue to drive the accelerating adoption of solar PV. As a result, capacity is set to more than double between 2025 and 2030 compared with the 2019 to 2024 period.
A growing share of variable renewable sources such as solar also comes with challenges. Curtailment levels and instances of negative electricity prices have been increasing in many markets. A rapid increase in power system flexibility and grid investment is necessary to integrate future growth securely and cost-effectively.
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Smart Grids
Country and regional highlights
Several major economies have announced substantial new funding to modernise and digitalise their electricity grids
Deployment
Clean, reliable and resilient electricity systems need smart grids more than ever
Innovation
Digital infrastructure in electricity grids is growing
Investment
International collaboration
International collaboration programmes for smart grids are a key enabler for their sustainable development
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Wind
Wind has significant potential to boost growth in global renewable capacity
Electricity generation from renewables is expected to increase by 60% through 2030 – rising from 9 900 terawatt-hours (TWh) in 2024 to 16 200 TWh by the end of the decade. Wind accounts for almost a third of growth, second only to solar PV, which accounts for 60%.
Although wind power continues to face supply chain issues, rising costs and permitting delays today, global capacity is still expected to nearly double to over 2 000 gigawatts (GW) by 2030 as both advanced and developing economies tackle these barriers.
Around…
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Hydroelectricity
…currently the third largest source of power generation worldwide after coal and natural gas. In 2024, it generated around 4 500 terawatt-hours of electricity, or 14% of the global total.
More than 150 gigawatts (GW) of new hydro capacity is set to come online by the end of the decade, mostly in emerging and developing economies. As a result, electricity generation from hydropower is expected to increase by 7% between 2025 and 2030. However, its share in global electricity generation is poised to decrease slightly by 2030 as other energy sources, including solar PV and wind, see faster growth…
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Renewable Integration
Renewable Integration
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Electrification
Country and regional highlights
Electrification gains momentum across countries and sectors
CO2 emissions
In the Net Zero by 2050 Scenario, from now to 2030 most electrification-related emission reductions occur in transport
Energy
The share of electricity in energy demand will need to increase by 4% per year to get on track with the Net Zero by 2050 Scenario
Technology deployment
New cars and new houses are the main areas for deployment of electrification technologies
Policy
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Heating
…jumped by almost 50% in Europe. In the United States, heat pump purchases exceeded those of gas furnaces, while in China, the world’s largest heat pump market, sales remained stable.
Heat pumps are a proven way to provide secure and sustainable heating
Heat pumps, powered by low-emissions electricity, are the central technology in the global transition to secure and sustainable heating. The Future of Heat Pumps, a special report in the IEA’s World Energy Outlook series, provides an outlook for heat pumps, identifying key opportunities to accelerate their deployment. It also highlights the major barriers and policy…
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District Heating
Country and regional highlights
Momentum for change is growing within the district heating industry
CO2 emissions
Decarbonisation efforts have not yet been sufficient to curb associated emissions
Energy
Despite large potential for the integration of renewable sources and recycled heat, fossil fuels dominate district heat supplies globally
Deployment
The district heating industry is transitioning to lower-temperature networks and integrating renewable energy sources
Innovation
Policy