Nepal, here comes the sun

Nepalis worship the sun, and mark its seasonal passage with festivals. Adding to that spiritual reverence now is the economic relevance of solar power.

Fast-flowing Himalayan rivers give Nepal a total feasible hydropower generation capacity of 48,000MW, of which only 3,600 has so far been harnessed. Yet, Nepal’s total solar power potential has been calculated to be nearly 10 times higher at 432,000MW.  

With over 300 days of sunshine a year, the country could produce 3.6 to 6.2 units of electricity per square meter based on its solar radiation levels. 

This potential, combined with decreasing installation costs of Chinese-manufactured photovoltaic cells and other means, is a viable and affordable alternative to Nepal’s over-reliance on hydropower which faces concerns about the destruction of riverine ecosystems, as well as risk from glacial lake floods caused by climate breakdown.

However, restrictive domestic energy policies and geopolitical sensitivities mean Nepal is failing to diversify fast enough to tap this tremendous solar energy potential.

Nepal’s hydropower generation is almost entirely from run-of-river projects that do not have large reservoirs. Many such projects in Nepal and across the Himalaya have been swept away by glacial lake outburst floods in recent years. 

Such risks and limitations to hydropower should have prompted the Nepal government to jump-start investment into solar farms, but the main reason is that the Nepal Electricity Authority (NEA) caps solar power at just 10% of total capacity. There is no official explanation, but it is likely due to the outdated perception that solar technology cannot supply a consistent energy stream at evening and morning peak loads. 

But today, there are plenty of ways around it, including pump storage schemes that use daytime solar power to pump water from a river to a reservoir and drain it to generate electricity at night. Battery technology is now more advanced, and affordable enough to make grid-scale batteries feasible. 

But then there is an issue of tariffs, which are much lower for solar at Rs5 per energy unit, and competitive bidding forces companies to lower it even further. But there is no bidding process for hydropower and licenses are given out on a first-come, first-served basis with a fixed rate of Rs6.5 per unit regardless of location.

SUPPLY VS DEMAND

Hydropower is supply-driven, while solar responds to demand, so under such a discouraging scenario, solar power accounts for only 5% of Nepal’s total energy mix.

“Given the environmental risks to hydropower, investors are now demanding tariffs on hydropower to be increased. So the question to the government is, are you paying more money for hydropower or willing to buy more of the cheaper solar power,” said energy entrepreneur Kushal Gurung.

Solar investors are lobbying the government to raise the cap on solar power to 30% and expand zoning policies so that solar plants can be built in areas with high potential, such as Dolpo and Mustang in the trans-Himalaya. These regions are sparsely populated, arid, have a cold climate and high solar radiation levels — ideal conditions for photovoltaics.

Solar power’s biggest advantage is its cost-effectiveness compared to hydropower, with the operating cost of a hydropower plant up to four times higher than of a solar plant of the same generation capacity. Investors are no longer assured of a return on investment on hydropower due to climate risk which have increased insurance premiums.

“Last year, when the government opened a bidding for 800MW of solar power, the private sector was ready to invest 3,000MW. Both banks and investors were convinced about the potential for solar energy, but the government and especially the bureaucracy, was not on the same wavelength,” added Gurung. 

Interim Energy Minister Kulman Ghising is said to be interested in increasing the cap on solar energy, but there is a question whether he will remain in office since he has launched his only Ujyalo Nepal party to contest elections in March.

GEOGRAPHY AND GEOPOLITICS

In 2018, Nepal’s only foreign private equity form Dolma Himalayan Climate Fund (DHCF) pitched a proposal to generate 150MW from a solar farm and store 20MW of it in battery systems in Mustang to meet seasonal and daily peaks.

It got approval from Investment Board Nepal (IBN) and had already poured millions into the project when the Department of Mines instructed all developers in Mustang to halt their projects, citing the discovery of uranium ore. But insiders say the real reason was due to pressure from the Chinese government’s security concerns about a Western investor being involved so close to the border with Tibet. 

The same thing happened, but in reverse, when the Chinese company Risen Energy was interested in investing $190 million on a grid-connected 125MW photovoltaic generation system in Banke and Kapilvastu districts near the Indian border. Risen’s subsidiary, Risen Energy Singapore JV, was negotiating with IBN to commit $190 million in the project which would also store 20MW of daytime generation for morning and evening peak demand.

But the agreement was not signed because the Indian authorities were concerned about Chinese involvement so close to their border. India has also refused to buy electricity from any hydropower plant in Nepal that has Chinese or other foreign investment or contractors. Indian state-owned companies are currently building or planning hydropower plants in Nepal to generate nearly 3,000MW, mostly for export. 

But not every Chinese-backed project has been blocked. In 2024, China handed over two solar-powered livelihood projects to a local community in Lalitpur — a community solar bathhouse and a rooftop photovoltaic power system. Funded by the Yunnan People’s Association for Friendship with Foreign Countries, the projects aim to improve living conditions. The initiative forms part of the Chinese Embassy’s ‘Happy Community’ program (幸福社区, Xìngfú Shèqū) under the China–South Asia Poverty Reduction and Development Cooperation Center. 

Says Gurung: “Hydropower is a geopolitical mess, but it has well and truly started in solar power too. It now all comes down to how we handle it, and we need deft diplomacy to make sure our projects are not indefinitely delayed as has happened in the past.” 

LOW-HANGING FRUIT

Despite domestic restrictions and geopolitics, there are still small-scale opportunities for solar energy entrepreneurs to cash in, such as net metering. Most industries in Nepal have enough rooftop space to generate 500KW to 1MW of solar energy. Combined, they would generate a substantial amount of energy to feed into the grid.

Factories, supermarkets and chain stores are often bankable and trusted by financial institutions from which they could easily get credit. 

China could also take advantage of Nepal’s high solar power potential. Given that the United States has only imposed a 10% tariff on Nepal, China could set up PV manufacturing plants in Nepal. 

However, this requires government-to-government which could run into trouble, again because of geopolitics. The same applies for the Carbon Border Adjustment Mechanism which is a carbon tariff on carbon intensive products, such as steel, cement and some electricity, imported to the European Union. 

Chinese products have suffered under this mechanism but Chinese products made in Nepal can be competitive in the European market given lower carbon tax for Nepal. Clean energy has long been an area where Nepal hopes to attract Chinese investment — not only in hydropower, but also in solar and wind energy. 

With contributions from Qian Sun, Global Voices.