Logo of Phnom Penh Post newspaper Phnom Penh Post - Renewable energy suppliers find their place under the sun

Renewable energy suppliers find their place under the sun

Renewable energy suppliers find their place under the sun

Only about 2 percent of Cambodia’s solar sales are in Phnom Penh.

As the world scrambles to harness alternative energy sources, the importance of solar power has risen concurrently, but is Cambodia contributing to the demand?


A Swiss scientist, Horace de Saussure, invented the world’s first solar energy collector, or “hot box”, in 1767. In the 1830s, British astronomer John Herschel used a solar energy collector box to cook food during an expedition to Africa. Albert Einstein won the Nobel Prize in 1921 for experiments with solar energy and photovoltaics. It takes 8 minutes, 17 seconds for light to travel from the sun’s surface to earth.
Enough sunlight falls on the earth every minute to meet the world’s energy demands for an entire year. If we covered a small fraction of the Sahara Desert with photovoltaic cells, we could have enough power to meet all the world’s electricity requirements. All TV and communications satellites are powered by solar energy using photovoltaic cells. The sun will run out of fuel in 5 billion years.

Providers of solar power products in Phnom Penh
Khmer Solar 71, Norodom Boulevard, corner Street 154; 023 212 212
KC Solar 32A, Oknha Khleang Moeung (Street 70), 023 864 045, mobile 012 677 987, www.kc-solar.com

Tropical regions should be the ideal place to generate solar electricity.

Developing countries along the equator get fairly consistent sunlight year-round and could use this to harness the free energy the sun provides.
However, high initial investment costs have made the option prohibitive for most.

Solar power is not a new idea in Cambodia. In fact, one company brought solar here more than 10 years ago.

Khmer Solar was the brainchild of Peter Banwell and Ford Thai, who started the business in 1997 with the idealistic view that renewable energy should be an option for Cambodians.

Their client base in the first five years was approximately 80 percent NGOs, with the remainder being private homeowners.

NGOs had the capital to invest in the equipment, and many of their projects were far from functioning power lines. Also, the foreign staff were aware of the benefits of using renewable energy.

Kunthap Hing, an adviser for Khmer Solar, was working with the World Bank in the early 2000s, studying the viability of renewables, energy efficiency and conservation.

"The World Bank was a big supporter of solar and still is," he said. "They helped fund studies showing that, if the initial costs could be brought down, rural Cambodia would benefit from solar power."

Ten years ago, the initial investment cost for solar panels, batteries and a charge converter averaged $10 per kilowatt.

To power a small TV for two to three hours, you would need a 130-watt system.

Therefore, the cost of buying and installing that system would have been $1,300.

For an oil-run generator, the investment cost is 50 cents per kilowatt and would have cost $75 for the same capacity.

However, the prices for solar have dropped considerably in recent years. It now costs $5-$8 per kilowatt, depending on the size and complexity of the system.

The lower costs have brought more interest, and there are now more than a dozen companies selling solar power systems in Cambodia.
European countries have invested heavily in solar, with Germany one of the leaders in the field.

Better technology has led to more efficient power converters and new sealed-gel batteries, which last longer and are easier to handle than the wet-cell batteries found in most cars.

Though wet-cell batteries only last two to three years in Cambodia's heat, Chanrith Khuth of KC Solar stated: "We have a warranty of three years for our gel batteries, but we believe they will last for 10."

These cutting-edge power sources are designed to work in a 30-degree environment, which is important because the system is centred on the battery, which is also the weakest part.

Although the battery will need replacing every so often, the converters and solar panels have warranties anywhere from 25-40 years and a probable lifespan of much longer.

All of these advances, combined with lower front-end costs, have made the systems more competitive with other electrical options.

According to The World Bank Web site: "Electricity tariffs in Cambodia are among the highest in the world.

"The average tariff charged by Electricite du Cambodge is 16 US cents/kWh, ranging from 9 to 23 cents/kWh, with even higher tariffs outside Phnom Penh.

"The tariffs of the Rural Electricity Enterprises (REE) range from 30 to 90 cents/kWh."

KC Solar recently installed a 4,000-kilowatt system in a house in Oudong.

The owner had been paying 50 cents/kWh for electricity, but is now off of the grid.

Battambang has become the area with the most sales of late, because many of the farmers are wealthy but only the city centre has power.
Sales trends have reversed recently, with 80 percent of solar systems being sold to private households and the rest to NGOs and government buildings.

Phnom Penh only accounts for about 2 percent of sales, most of which are solar water heaters.


  • New US bill ‘is a violation of Cambodian independence’

    After a US congressmen introduced bipartisan legislation that will enact sanctions on Cambodian officials responsible for “undermining democracy” in the Kingdom, government officials and the ruling Cambodian People’s Party on Sunday said they regarded the potential action as the “violation of independence and sovereignty

  • Angkor Wat named as the top landmark for the second year

    Travel website TripAdvisor has named Cambodia’s ancient wonder Angkor Wat as the top landmark in the world for the second year running in their Travelers’ Choice Award 2018, an achievement Cambodian tourism operators expect will attract more tourists to the Kingdom. The website uses traveller

  • Ministry’s plan for net sparks fears

    The government has ordered all domestic and international internet traffic in the Kingdom to pass through a Data Management Centre (DMC) that has been newly created by the state-owned Telecom Cambodia, in a move some have claimed is an attempt to censor government critics. Spokesman

  • Hun Sen detractors ‘will die’

    Prime Minister Hun Sen on Wednesday said those who curse or insult him would eventually die without a plot of land to bury their bodies after being killed by lightning, suffering the same fate as those who recently died in Thmar Baing district in Koh