Energy Efficiency grants — page 2
629 listings tracked right now · page 2 of 14
Programmes for industrial efficiency, building retrofits, heat recovery and demand reduction. Typical funders are UK DESNZ and the Industrial Energy Transformation Fund, the US DOE, EU LIFE and Horizon, and utility efficiency-obligation schemes. Listed below are the open energy efficiency grant calls in that landscape, taken from each funder's own notice and re-checked on every refresh.
Energy grants divide into two families that rarely share a form. Deployment pots such as the EU Innovation Fund, the US Department of Energy and the UK Net Zero Innovation Portfolio back kit that already works, usually at 30 to 50 per cent intervention rates against matched private capital. Earlier research calls, Horizon Europe and ARPA-E and Innovate UK among them, fund lower technology readiness at far smaller cheques. Applying to the wrong family is the most common reason a strong project scores badly.
This page lists open energy efficiency grants currently tracked by Raise Lens — 629 of them right now, sorted with the soonest deadline first. Every listing has been classified against the sustainability taxonomy rather than matched on keywords, so what appears here is energy efficiency work rather than anything whose description happens to mention it.
The funders publishing energy efficiency grants here include Agence de la transition écologique (ADEME), 50139513, 50139644, among 2 others. Who is funding matters as much as what: eligibility, reporting burden and the realistic timeline to a decision vary far more between funders than between individual calls.
Geographic coverage on this page spans GLOBAL, EUROPE, GLOBAL-SOUTH, AFRICA, ASIA. Eligibility is usually tied to where the work happens or where the applying organisation is registered, and the two are not always the same — worth checking before investing time in an application.
Modernization and Innovation Support Plan for the Fleet (PAMI)
••••• Agency
PAMI is a French government call supporting modernization and innovation in fleet management with a focus on ecological transition and circular economy principles. The programme targets organizations seeking to deploy cleaner, more efficient vehicle fleets and circular-economy practices.
Innovative microgrids for improved energy system integration and efficiency in urban contexts
••••• organisation
This grant funds innovative microgrid projects that integrate renewable energy, demand response, and digital technologies to improve urban energy system efficiency and support climate-neutral cities. Eligible applicants include research institutions, universities, SMEs, large companies, and consortia working on urban energy integration in EU member states and associated countries.
Boosting the transformation towards climate-neutral cities, the net-zero economy and open strategic autonomy through Pre-Commercial Procurement (PCP)
••••• organisation
This Horizon Europe Pre-Commercial Procurement call funds innovation procurement to accelerate climate-neutral city transformation, net-zero technologies, and open strategic autonomy through public-private partnerships. Eligible applicants include cities, public authorities, consortia, and innovation providers developing and procuring breakthrough solutions in decarbonization, green technology, and digital innovation.
Integrated Approaches for Retrofitting Infrastructures with Innovative Energy Storage Technologies
••••• organisation
This Horizon Europe Innovation Action funds integrated retrofitting of existing infrastructures with advanced energy storage technologies to support the energy transition and RePowerEU objectives. Eligible applicants include research institutions, companies, and consortia across EU member states and associated countries.
Demonstration of hydropower technologies for efficient and forward-looking refurbishment of existing hydropower plants
••••• organisation
This grant funds demonstration projects for refurbishing existing hydropower plants with efficient, forward-looking technologies. It targets hydropower operators and consortia seeking to modernize infrastructure and improve performance.
Energy savings opportunity scheme (ESOS): find out if you qualify and how to comply
••••• organisation
ESOS is a UK regulatory compliance scheme requiring large organizations to conduct energy audits and identify cost-effective energy-saving measures to improve operational efficiency. The scheme applies to businesses meeting specific energy-consumption thresholds and provides guidance on qualification criteria and compliance pathways.
Resilient and Sustainable Data Infrastructures and Digital Equipment
••••• Agency
EcoIDEN supports innovative demonstrator and industrialisation projects advancing responsible digital sector development through two themes: energy/water-efficient data infrastructures with waste-heat recovery, and circular economy for digital equipment via ecodesign, repair, reuse, and sector robotisation. The call targets companies, research institutions, and consortia across France seeking to accelerate circular economy adoption in digital value chains.
Greenov'i - Support Project for Green Entrepreneurship in Tunisia
••••• Commission
This EU-funded grant supports green entrepreneurs and businesses in Tunisia through financing and mentoring in green innovation, circular economy, sustainable tourism, and craft-sector upgrading. Eligible applicants include economic operators and enterprises seeking to transition to sustainable business models.
Promoting the Development of Low-Carbon Industrial Zones (ZIBaC) Phase 2: Support
••••• Agency
This is a Phase 2 support programme from France's ecological transition agency (ADEME) designed to promote the development of low-carbon industrial zones (ZIBaC), combining energy efficiency, circular economy, and decarbonization measures. It targets industrial park operators and consortia seeking to transition their zones toward net-zero emissions and resource circularity.
Pre-project Support for Energy Efficiency in Commercial Buildings
••••• organisation
This is a pre-project support grant from the funder (Norway's state enterprise for energy and climate) funding energy efficiency improvements in commercial/office buildings. The grant targets organizations planning energy retrofit or efficiency projects in non-residential buildings.
Pitch for Investors at Sweden Sustaintech Venture Day 2026
••••• Agency
A pitch event for sustainable technology ventures to present to investors at Sweden Sustaintech Venture Day 2026, organized by the Swedish Energy Agency. The programme supports early-stage cleantech and energy innovation companies seeking investment and market access.
Renewable Heat and Cold Production Installations from Surface Geothermal, Air Source or Sea Source Heat
••••• Agency
This grant funds the installation of renewable heat and cold production systems using surface geothermal, air source, or sea source heat pump technologies. It targets organizations in France seeking to deploy low-carbon heating and cooling infrastructure as part of the ecological transition.
Audit and Rehabilitation of Collective Solar Thermal Installations
••••• Agency
ADEME funds audits and rehabilitation of underperforming collective solar thermal installations (below 50% efficiency) in France, covering diagnostic work, corrective implementation, and operational contracting. Eligible applicants must work with pre-selected study providers and submit technical and financial proposals for audit and rehabilitation costs.
Heat and cold production installations from geothermal temperate water loop
••••• Agency
ADEME provides financial aid for installing geothermal temperate water loop systems that distribute low-temperature water (10-25°C) across multiple buildings for heating, cooling, and hot water via heat pumps powered by renewable or waste-heat sources. The grant supports energy transition projects that demonstrate consideration of energy efficiency, waste-heat recovery, and local renewable resources, with mandatory feasibility studies and performance criteria.
Installation of solar heat pumps for hot water production
••••• Agency
ADEME (France's ecological transition agency) funds the installation of solar heat pumps for domestic hot water production, supporting the transition to renewable heating technologies. The grant targets organizations and potentially households seeking to deploy solar thermal systems integrated with heat pump technology.
Combined Solar System Installations
••••• Agency
This grant funds the installation of Combined Solar Systems (SSC) for collective heat production in buildings, providing flat-rate financial assistance based on heat output. Eligible applicants include building owners and operators pursuing thermal solar heating and domestic hot water solutions, with mandatory consideration of energy efficiency and renewable energy alternatives.
Feasibility Studies on Energy Performance or Decarbonization of Industrial Companies
••••• Agency
This grant funds feasibility studies to assess energy performance improvements and decarbonization pathways for industrial companies in France. It targets industrial enterprises seeking to evaluate technical and economic viability of energy transition and emissions-reduction initiatives.
Decision Support Study for Deep Geothermal Projects
••••• Agency
ADEME funds feasibility studies for deep geothermal energy projects in France, covering technical, economic, and regulatory analysis for installations exceeding 200 meters depth. The programme supports project owners through the Fonds Chaleur with up to 80% cost coverage (capped at €1M) for de-risking studies on drilling doublets, heat pump integration, well repurposing, and district heating applications.
Feasibility Studies for Waste Heat Recovery Installation
••••• Agency
This grant funds feasibility studies for waste heat recovery installation projects, supporting the transition to circular economy and energy efficiency. It is administered by France's ecological transition agency (ADEME) and targets organizations exploring waste heat recovery as a decarbonization strategy.
Multi-Renewable Energy and Recovery Opportunity Study
••••• Agency
This grant funds comprehensive feasibility studies for organizations to identify and evaluate renewable heat and cold solutions tailored to their building energy needs. Eligible applicants are organizations in France seeking to assess technical and economic viability of renewable energy systems before implementation.
My Energy Savings Journey - Booster: Reduce Your Energy Bill and Gain Green Value
••••• Agency
This grant funds energy engineering studies and tertiary building renovation for SMEs and mid-sized companies in France, supporting Project Management and Energy Performance Contracts to achieve significant energy consumption reductions. Eligible organizations must commit to meeting 2030 (SMEs) or 2040 (mid-sized) energy efficiency targets aligned with France's Tertiary Eco-Energy Device.
Implementation of Waste Heat Recovery Installations
••••• Agency
This grant funds the installation and implementation of waste heat recovery systems to improve energy efficiency and support circular economy objectives. It targets organizations in France seeking to deploy waste heat recovery technologies as part of ecological transition initiatives.
Energy audit and multi-renewable opportunity study for greenhouses
••••• Agency
ADEME funds comprehensive energy audits and renewable energy feasibility studies for agricultural greenhouse operations to reduce fossil fuel consumption and identify cost-effective energy efficiency and renewable energy investments. The programme targets farm structures seeking to transition to sustainable energy with potential savings up to 50%.
Decision Support Study for Shallow Geothermal, Air Source Heat Pump, or Sea Thermal Energy Projects
••••• Agency
This grant funds feasibility and decision-support studies for shallow geothermal, air source heat pump, or sea thermal energy projects in France. It targets organizations evaluating the technical and economic viability of renewable heating and cooling technologies before deployment.
Improvement of air quality in territories under Air Quality Plans or affected by current or forecast 2030 exceedances
••••• Agency
This grant funds projects to improve air quality in French territories that are subject to Air Quality Plans or at risk of exceeding 2030 EU air quality standards. It targets local and regional interventions to reduce air pollution through emissions abatement and air quality management.
My Energy Savings Journey - ACT® Step-by-Step Support and ACT® Non-Industrial Structures Assessment
••••• Agency
ADEME's My Energy Savings Journey funds step-by-step decarbonization strategy development and climate transition plan assessments for non-industrial tertiary structures using the ACT® methodology. The programme supports organizations of all sizes over 12–18 months to build low-carbon strategies and reduce greenhouse gas emissions.
Installation of solar thermal hot water production
••••• Agency
This grant funds the installation of solar thermal hot water production systems, supporting the transition to renewable heating and energy efficiency. It is offered by France's ecological transition agency (ADEME) to eligible organizations seeking to deploy solar thermal technology.
My Energy Savings Journey - Voluntary Energy Audit in Industry
••••• Agency
This grant funds voluntary energy audits for industrial companies to identify and implement energy savings opportunities. It targets industrial organizations seeking to reduce energy consumption and transition toward ecological sustainability.
A European Industrial Energy Transition Support Programme
••••• Agency
PACTE Industrie funds industrial companies' decarbonization efforts through studies, coaching, and strategic support across energy management, decarbonization strategy, and transition financing. Eligible industrial enterprises across France can access services from registered providers to accelerate their energy transition and low-carbon investment trajectories.
Ecodesign Studies of Products and Services
••••• Agency
ADEME funds in-depth ecodesign studies for products and services, covering diagnostic phases and implementation phases to improve environmental and economic performance. The programme supports organisations of all sizes, with dedicated tracks for SME diagnostics, European Ecolabel certification, and ecodesign standard testing.
a US venture-capital fund for digital energy solutions
••••• organisation
The funder invests in digital transformation solutions for the energy industry, funding innovative founders who apply digital tools to energy challenges such as data gathering, process automation, and operational efficiency. The fund targets startups across oil & gas, utilities, clean energy, and energy transition sectors.
Data Center Innovation Initiative
••••• organisation
This grant funds technology startups developing next-generation energy, materials, and cooling innovations for data center infrastructure, with investments of $500K–$5M per project through 2027. Eligible technologies are tested in real data centers or demonstration sites in partnership with major cloud providers (Amazon, Google, Meta, Microsoft).
Promoting energy efficient buildings and appliances
••••• Fund
This grant funds organizations advancing energy efficiency in buildings and appliances through standards, codes, and labeling programs. It targets nonprofits, research institutions, and policy organizations working on energy efficiency policy and market transformation.
Heat Pump Grant (Boiler Upgrade Scheme)
••••• Department
This grant provides up to £9,000 (approximately $11,250) to help households in England and Wales transition from heating oil to heat pumps, reducing fossil fuel dependence and lowering energy bills. Eligible applicants are homeowners currently using oil heating who wish to install a heat pump system.
Warm Home Discount Scheme
••••• Department
The Warm Home Discount Scheme provides bill discounts on energy costs for eligible low-income and vulnerable households across the UK, reducing energy poverty and improving household energy security. The scheme targets vulnerable populations to make heating and energy more affordable.
A European Private Equity Fund (Resource Efficiency)
••••• organisation
The funder is offering mid-market private equity investments in European resource efficiency and environmental technology businesses, targeting companies valued between $250m and $2.5bn. This is equity investment in mature, revenue-generating cleantech and water technology companies, not grants or early-stage funding.
US State Energy Innovation Accelerator Program
••••• organisation
A multi-phase accelerator programme (Phase 0–3) that supports diverse founders building climate tech startups, from early ideation through investment readiness. The programme provides structured mentorship, funding facilitation, and business development support to advance clean energy and climate technology ventures.
Direct Investments (Loan Agreements)
••••• organisation
Symbiotics originates direct debt investments (loans) into financial inclusion, MSME lending, and energy efficiency companies across 99 emerging and frontier economies, with deal sizes up to $18 million. This is a callable investment opportunity for companies in these sectors seeking growth capital in developing markets.
Energy Research Capital (SpeedUp Energy Innovation) – Expansion CVC Fund
••••• organisation
A CVC fund jointly managed by the funder, Polski Fundusz Rozwoju, and SpeedUp Group that invests €500k–€750k in expansion-phase energy startups, with follow-on capacity up to ~€1.25m. The fund targets cleantech and energy innovation companies ready to scale beyond prototype/pilot stage.
Energy & Climate
••••• Fund
This grant supports communities transitioning to clean energy through renewable energy deployment and clean electric appliance adoption, with a focus on climate resilience and advocacy. It targets organizations working on energy transition and climate mitigation in underserved or transitioning communities.
Scaling Compute
••••• Agency
This grant funds research into novel computing paradigms—such as nature-inspired computation—that reduce energy consumption and improve data efficiency in AI systems. It targets researchers and organizations developing sustainable alternatives to conventional compute infrastructure.
Energy and Environment
••••• Foundation
This grant funds the distribution and awareness-raising of clean energy products for cooking and lighting in developing markets, with a track record of reaching over 1.7 million individuals. Eligible applicants are organizations working to scale access to clean cooking and lighting solutions, particularly in energy-poor regions.
A climate-tech investment fund focused on clean energy and cleantech investments
••••• organisation
Hycap is an energy-transition investment fund co-founded by the funder that deploys capital into companies and projects advancing the transition to clean energy. The fund targets portfolio companies across the clean energy and cleantech sectors at various stages of development.
Energy Software & Platforms
••••• organisation
The funder invests in SaaS, marketplace, and platform solutions that serve the advanced energy sector, including renewable energy and related technologies. The fund targets software and digital platform companies, as well as education technology, that enable energy transition and decarbonization.
C-PACE / FASTPACE Platform
••••• Bank
C-PACE/FASTPACE is a $250 million lending platform from the funder that finances clean energy retrofits and upgrades for commercial real estate properties nationwide. The platform accelerates capital deployment for energy efficiency and renewable energy projects in the commercial property sector.
A European Mid-Cap Climate Investment Fund
••••• organisation
Private equity fund investing in mid-cap climate solution companies (€30–500m sales) across highest-emitting sectors in DACH, Italy, and Nordic regions. Targets profitable, growing businesses with built-in CO2 reduction through an operations-first approach.
Climate Investment Strategy
••••• organisation
The funder invests in Series A, B & C digital solutions that advance energy transition, climate, and industrial decarbonization, with typical first checks of $10–30M and a preference for lead rounds. The fund targets earlier-stage companies with technology potential to reshape energy, grid, and industrial sectors.
Regional Portfolio (BCF)
••••• organisation
The funder invests in regional UK startups and growth companies addressing UN SDGs, with a focus on electric mobility and clean tech sectors. The fund is managed on behalf of the British Business Bank and local government pension funds, targeting sustainable growth across multiple environmental and social impact areas.