For most people, the Caribbean is synonymous with idyllic postcard vistas: golden sun stretching over turquoise coastlines, mist-wreathed lush mountains, and steady trade winds that cut through tropical heat. What fewer recognize is that these very natural features — sun, wind, tidal water, and geothermal heat — add up to an underutilized global renewable energy powerhouse, waiting to be activated.
The United Kingdom, through its Foreign, Commonwealth and Development Office, has emerged as a key strategic partner to Caribbean nations, working to unlock this latent potential and convert abundant natural assets into reliable, affordable clean energy that can drive inclusive, resilient, long-term sustainable growth across the region.
The resource potential is staggering. Multiple Caribbean islands have the natural capacity to generate 100% of their domestic energy needs from renewables, with surplus production to export clean power to neighboring countries. Some regional economies could even go a step further, converting excess renewable electricity into transportable low-carbon fuels including green hydrogen, ammonia, and methanol for global markets.
Despite this extraordinary natural advantage, the region remains overwhelmingly dependent on fossil fuels. Data shows that roughly 87% of the energy mix across the Caribbean Community (Caricom) still comes from carbon-intensive fossil sources, a legacy that has driven cripplingly high energy costs for households. On average, Caribbean families pay between two and three times more for electricity than households in most other regions, and this dependence on imported fossil fuels has created systemic economic vulnerability, ballooned public debt burdens, and left the region chronically energy insecure.
The UK has positioned itself as a long-term partner in Caricom’s clean energy transition, having committed $39 billion in funding to regional energy initiatives since 2015. To date, UK support has spanned a wide range of critical projects: advancing geothermal resource development, rolling out large-scale solar photovoltaic installations, funding energy efficiency retrofits for public buildings, delivering technical training programs to build local capacity across the Eastern Caribbean, and laying critical early groundwork for a regional offshore wind energy market.
One standout success story of this partnership is the geothermal development project in Dominica, where UK de-risking funding covered the high upfront costs of exploratory drilling, giving private sector investors the confidence to commit to the project. After years of coordinated collaboration between the Dominican government, UK development teams, and multiple partner organizations, the country is set to commission the first utility-scale geothermal plant in the English-speaking Caribbean in April 2026. The plant is expected to deliver transformative change for Dominica’s economy and energy security, and UK teams are now working to replicate this success with ongoing geothermal projects in Grenada and St. Lucia.
Additional UK-backed projects have already delivered tangible benefits across the region. In St. Vincent and the Grenadines, support for energy-efficient street lighting and a new solar photovoltaic plant at the country’s international airport has saved the government millions of dollars in energy costs and cut hundreds of tonnes of annual carbon dioxide emissions. Early work to map offshore wind potential across the Caribbean, while still in its early stages, is already showing significant promise for large-scale future development.
Even with these wins, the road to full energy transition remains uneven. Back in 2013, Caricom set an ambitious regional target of reaching 47% renewable electricity generation by 2027. As of 2023, the region has only hit roughly 13% renewable penetration, meaning the pace of transition will need to accelerate dramatically to meet the 2027 goal.
Progress has also been highly uneven across member states: a small number of leading countries have made meaningful strides in scaling solar, wind, and geothermal capacity, while many others have lagged far behind. As a region of mostly Small Island Developing States (SIDS), the Caribbean faces structural barriers that have slowed deployment: small, constrained national grid sizes, prohibitive upfront capital costs, limited local technical capacity, and fragmented national markets that make it impossible to capture economies of scale. Many countries also lack the modernized grid infrastructure and updated regulatory frameworks required to integrate variable solar and wind generation into existing energy systems.
Despite these challenges, the region is now at a defining moment of opportunity, with clear, actionable solutions ready to be deployed. Regional pooled procurement and aggregated project pipelines can drive down per-unit costs and attract large-scale global institutional investors. Modernizing outdated grid infrastructure and updating regulatory frameworks can clear the way for greater private sector participation. Blended finance and concessional lending can help governments overcome the steep upfront costs that have blocked large projects to date. And investing in local engineering and technical training can ensure that transition projects deliver long-term, sustainable benefits for local communities.
All the natural resources the Caribbean needs to become a global clean energy leader are already within its borders, and experts say there is no time to delay. With decisive national action, coordinated regional leadership, and strategic international partnerships, the region can turn its natural abundance into universal energy security, lower household electricity bills, and a more climate-resilient future for all Caribbean people.
The UK has reaffirmed its commitment to standing with the Caribbean through this transition. Via the Global Clean Power Alliance, the UK and regional partners have agreed to a concrete 2026–2028 Caribbean action plan, which will provide on-demand access to UK private sector capital and technical expertise to address key barriers and attract the billions in investment needed to scale up clean energy deployment across the region.
The resources are here. The moment for action is now.