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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.”
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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.
Sale 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.
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