Hybrid projects could add 25 GW of clean energy to Europe

European hybrid projects could deliver 25GW without new grid infrastructure

Wind turbines, solar panels, hydropower plants and battery storage can now share a single connection to the electricity grid. This approach, known as hybridisation, could add up to 25GW of clean energy capacity across Europe without requiring new grid infrastructure, according to recent analysis from Ember.

The potential is significant. These hybrid systems could integrate 18% of new renewable energy expected by 2030 across seven major EU hydropower markets. Consequently, businesses waiting years for grid connections might find faster routes to generating their own clean power.

For UK companies tracking European energy markets or operating facilities abroad, this matters commercially. Grid connection delays affect project timelines, capital costs and contract certainty. Hybridisation offers a practical workaround to those constraints.

Grid bottlenecks threaten 120GW of renewable capacity

Europe’s electricity grid was designed for a different era. As a result, outdated infrastructure now creates severe bottlenecks for renewable energy projects. More than 120GW of planned renewables face connection delays across 20 countries, according to grid operator data.

The scale of the queue is substantial. Approximately 1,700GW of renewable and hybrid projects were waiting for grid connections across 16 European countries in 2024 and early 2025. This capacity exceeds what’s needed to meet 2030 national climate targets.

Without intervention, the situation undermines climate policy. Renewable energy that cannot connect to the grid cannot displace fossil fuels or reduce emissions. Meanwhile, businesses that invested in these projects face extended delays and mounting costs.

Grid expansion typically requires a decade or more. Planning permissions, land acquisition, construction timelines and regulatory approvals all take time. Therefore, waiting for new grid capacity means delaying decarbonisation by years.

Combining technologies at a single connection point

Hybridisation works by connecting multiple generation or storage technologies through one grid access point. For example, a site might combine wind turbines, solar panels and battery storage. All three systems share the same physical connection to the network.

This arrangement doubles infrastructure utilisation on average while staying within export limits. A facility with 100MW of wind capacity, 80MW of solar and 50MW of battery storage could operate successfully on a 100MW grid connection. The key lies in managing combined output so total exports never exceed the connection’s capacity.

Wind and solar generate at different times. Wind typically peaks at night and in winter, while solar produces during daylight hours and summer months. Battery storage captures excess generation and releases it when prices are high or generation is low. This complementary pattern means the shared connection rarely hits maximum capacity from all sources simultaneously.

Existing hydropower facilities offer particularly strong opportunities. Developers can add wind or solar capacity at hydropower sites that already have grid connections. Furthermore, hydropower’s flexible generation helps balance the variable output from wind and solar.

This approach reduces average grid connection utilisation by over 10% compared to conventional wind-only installations. As a result, more renewable capacity can connect without upgrading the grid.

Cost savings reach 50% for combined installations

The financial case for hybridisation is clear. Combining photovoltaic solar with battery storage at the same grid point can reduce construction and operating costs by 50%, according to industry analysis.

These savings come from several sources. Site preparation, grid connection fees, land costs and planning applications are shared across technologies. Additionally, maintenance contracts, security systems and monitoring equipment serve multiple assets.

A flexible UK energy system incorporating storage integration could save £16.7 billion annually in electricity system costs by 2050. These savings reflect reduced need for backup generation, lower network reinforcement costs and improved system efficiency.

Revenue potential also increases significantly. Multi-market hybrid strategies can boost revenue generation by up to 100% compared to single-technology sites. Hybrid operators access multiple income streams including wholesale electricity sales, capacity markets, frequency response services and grid balancing contracts.

Battery storage within hybrid systems provides ancillary services traditionally supplied by conventional power stations. These include frequency regulation, voltage support and rapid response to demand fluctuations. Grid operators pay for these services, creating additional revenue.

System-wide benefits extend beyond individual projects. Hybrid plants improve grid stability and reduce blackout risks. Batteries can both lower the probability of grid failures and shorten recovery times during incidents. For instance, hybrid systems could have mitigated impacts during the Iberian Peninsula blackout that affected 60 million people.

Romanian project demonstrates commercial scale

Project Ogrezeni in southeastern Romania shows what hybrid development looks like at scale. Developed by Enery, the facility combines approximately 762 MWp of photovoltaic capacity with more than 1 GWh of battery storage.

The installation generates around 1,100 GWh annually. This output could power 651,326 households based on average consumption figures. Moreover, the project saves approximately 288,375 tonnes of CO₂ equivalent emissions each year.

Project Ogrezeni ranks among Europe’s largest hybrid installations. It serves as a reference point for Romania’s decarbonisation targets and energy security objectives. The scale demonstrates that hybrid projects can deliver utility-scale capacity, not just niche applications.

Similar projects are emerging across Europe. Spain, Portugal, Italy and Greece have particularly strong pipelines due to excellent solar resources and existing renewable infrastructure. Germany and the Netherlands focus on combining offshore wind with battery storage near demand centres.

What UK businesses should understand

• Hybrid renewable projects combining wind, solar and battery storage can share a single grid connection, potentially adding 25GW of European capacity without new infrastructure.
• Over 1,700GW of renewable capacity currently waits for grid connections across 16 European countries, exceeding the capacity needed for 2030 climate targets.
• Combining solar with battery storage at the same grid point can reduce construction and operating costs by up to 50% compared to separate installations.
• Multi-technology sites can increase revenue generation by up to 100% through access to multiple markets including wholesale power, capacity payments and ancillary services.
• The EU’s revised Renewable Energy Directive explicitly supports hybrid projects and sets a 42.5% renewable energy target for 2030.
• The European hybrid energy market is projected to reach €12 to €16 billion annually by 2030, with cumulative capacity between 80GW and 120GW by 2035.

Policy barriers slow deployment despite clear benefits

Regulatory frameworks have not kept pace with technology. Many European countries still process grid connection applications separately for each technology type. This means a developer wanting to add solar panels to an existing wind farm must submit a new application and join the connection queue.

Planning regulations create additional delays. Some jurisdictions require separate environmental assessments for each technology, even when they occupy the same site. Consequently, hybrid projects face longer approval timelines than their single-technology counterparts.

Several policy changes could accelerate deployment. First, grid operators should develop detailed hosting capacity maps showing where the network can accommodate additional generation. These maps would enable developers to identify suitable locations quickly and reduce connection queue backlogs.

Second, targeted state aid could support hybrid projects that lack other forms of public funding. Many subsidy schemes were designed for single technologies and do not accommodate hybrid configurations. Therefore, dedicated funding mechanisms would level the playing field.

Third, permitting processes need fast-track provisions for projects that hybridise existing facilities in grid-congested areas. Recognising renewables and storage as infrastructure of overriding public interest would help, as it has in other sectors.

Fourth, digitalising grid connection agreements would improve transparency and reduce administrative delays. Currently, many connection processes rely on paper-based systems that slow approvals and create uncertainty for developers.

Finally, allowing batteries to participate in multiple revenue streams beyond day-ahead electricity markets would improve project economics. Restrictions that limit batteries to single market participation reduce their value and discourage investment.

The EU’s revised Renewable Energy Directive, known as RED III, explicitly encourages hybrid projects. It sets a binding 42.5% renewable energy target for 2030 and includes provisions to streamline hybrid development. Similarly, the Net-Zero Industry Act designates battery storage as strategic technology eligible for faster permitting.

Commercial implications for UK companies

British businesses with European operations should monitor hybrid project development closely. Energy procurement strategies may need adjustment as hybrid plants change wholesale market dynamics and pricing patterns.

Companies considering on-site generation should evaluate hybrid configurations. Net zero planning increasingly requires understanding how different technologies interact and complement each other. A site with existing solar panels might add battery storage more cost-effectively than previously assumed.

Supply chain implications deserve attention. The hybrid market is projected to reach €12 to €16 billion annually by 2030. UK manufacturers and service providers in renewable energy, battery systems or grid integration technology may find new export opportunities.

Public sector suppliers face particular considerations. Procurement notices increasingly specify renewable energy in tender criteria. Understanding hybrid project economics helps businesses demonstrate credible sustainability commitments and meet compliance requirements in competitive bids.

Energy-intensive manufacturers should assess whether hybrid generation could reduce exposure to wholesale price volatility. Battery storage allows businesses to shift consumption to lower-price periods or generate revenue by providing grid services during peak demand.

The technology also affects corporate power purchase agreements. Hybrid projects offer more stable generation profiles than single-technology sites. Consequently, they may provide more attractive terms for businesses seeking long-term renewable electricity contracts.

Risk management frameworks should account for changing grid dynamics. As hybrid projects proliferate, electricity prices may show different patterns. Businesses with fixed-price energy contracts need to understand how market structure is evolving.

Where to find detailed technical and policy information

The European Commission publishes comprehensive guidance on renewable energy policy through its Energy website. This includes details on the revised Renewable Energy Directive and implementation timelines across member states.

Ember’s analysis of hybrid renewable projects provides detailed modelling of grid integration potential. Their research includes country-specific assessments and technical specifications for different hybrid configurations.

The International Energy Agency maintains extensive data on renewable energy deployment, grid infrastructure and energy storage technology. Their annual reports track market development and identify emerging trends in hybrid systems.

National grid operators across Europe publish connection queue data and hosting capacity information. These resources help businesses identify where grid constraints are most severe and where hybrid projects offer the greatest potential.

For businesses seeking practical guidance on renewable energy strategy and carbon reduction, specialist training programmes offer structured learning on energy transition topics relevant to UK companies operating in European markets.