For years, solar-powered irrigation has been promoted as a promising solution for agriculture in developing countries. Yet many pilot projects struggle to move beyond demonstration sites. Once external funding ends, the technology often remains confined to a handful of communities, with limited influence on government programmes or agricultural practice.
Bhutan may be taking a different path.
Over the past few years, researchers, government agencies and local communities have been working together to test whether renewable-energy-powered lift irrigation systems can provide a practical solution to water access challenges in the country's mountainous regions. The work was carried out through an action research initiative “Women’s empowerment through renewable energy-powered decentralized lift irrigation systems in Bhutan (WERELIS – Bhutan)” led by the International Centre for Integrated Mountain Development (ICIMOD), in partnership with Bhutan's Department of Energy and with support from Canada's International Development Research Centre (IDRC).
The challenge was straightforward. Many farming communities, particularly those located on higher terrain, have access to water sources but lack affordable ways to move water uphill to agricultural land. Diesel-powered pumps can address this problem, but fuel costs, maintenance requirements and transportation challenges often limit their use. Solar-powered systems offer an alternative, particularly in remote areas where operating costs can become a major constraint.
Rather than beginning with technology alone, the initiative focused on understanding where such systems would be most effective and who would benefit from them. Technical assessments were combined with field surveys and consultations with farming communities. Particular attention was paid to the experiences of women farmers, who play a central role in agricultural production and often bear the consequences of unreliable irrigation.
The result was more than a set of pilot installations. The project generated detailed feasibility studies, site-selection methodologies and technical designs that could be used by planners and government agencies considering future investments.
That evidence appears to have found an audience.
In 2025, Bhutan's Department of Energy formally acknowledged that lessons emerging from the initiative helped inform aspects of the country's National Energy Policy 2025, particularly provisions related to productive uses of energy and the integration of renewable energy across sectors. The Department also noted that feasibility studies undertaken through the programme had strengthened its capacity to plan and implement similar renewable-energy-powered water pumping systems in the future.
Perhaps more importantly, the work helped move the discussion beyond policy. Drawing on the technical assessments and planning work generated through the initiative, the Royal Government of Bhutan committed public funding for the development of additional solar-powered lift irrigation systems. For a technology that is often discussed in the context of donor-funded pilots, the decision to allocate domestic resources represents an important step towards wider adoption.
The latest development has come from an unexpected place: the classroom.
In June 2026, the College of Natural Resources under the Royal University of Bhutan approved the inclusion of a dedicated unit on Renewable Energy-Powered Lift Irrigation within its undergraduate agriculture curriculum. Students enrolled in the Irrigation Water Management course will now receive formal instruction on the principles, design and application of solar-powered irrigation systems.
The change may appear modest, but it addresses a challenge that often receives less attention than financing or technology. Expanding renewable energy solutions in agriculture requires people who understand how to assess sites, design systems, operate equipment and advise farming communities. Without that technical capacity, scaling successful pilots becomes difficult.
The university's decision suggests that solar-powered irrigation is no longer being viewed solely as an experimental intervention. Instead, it is beginning to be treated as a subject worthy of formal academic training and professional development.
Alongside the curriculum update, training materials have also been developed for extension workers and field practitioners, helping bridge the gap between research findings and day-to-day agricultural practice.
Taken together, these developments point to a broader shift in how renewable energy is being applied in Bhutan's agricultural sector. The story is no longer simply about whether solar-powered irrigation works. The more interesting question is whether the institutions needed to support it are beginning to emerge.
Policy recognition, public investment, technical capacity and professional training do not guarantee large-scale adoption. They do, however, provide many of the conditions that pilot projects often struggle to achieve.
For countries looking to expand renewable energy beyond electricity generation and into productive sectors such as agriculture, Bhutan's experience offers an instructive example. Technology may be the starting point, but long-term adoption depends just as much on planning institutions, public investment and the people who will ultimately design, manage and use these systems.
That process is still unfolding. Yet the fact that solar-powered irrigation has moved from field demonstrations into government planning documents and university curricula suggests that it is beginning to take root in ways that extend beyond any single project.
To learn more about the initiative, please refer to Women’s empowerment through renewable energy-powered decentralized lift irrigation systems in Bhutan (WERELIS – Bhutan) | IDRC - International Development Research Centre.