TORONTO, Aug 26 (Thomson Reuters Foundation) - Kenya and Turkey have exceeded forecasts for harnessing geothermal energy, but other developing countries, including Indonesia and the Philippines, are lagging behind on leveraging the renewable power source, a new analysis shows.
If developing nations are to carry out planned expansion of geothermal energy capacity, $133 billion needs to be invested in the sector by 2030, the Climate Policy Initiative (CPI) research group reported on Wednesday.
Meeting the target to build 23GW of geothermal capacity over the next 15 years (one GW is enough energy to power 750,000 homes) would require a 7- to 10-fold increase in funding from governments and development financing bodies, the CPI said.
Public financing for geothermal projects should increase to between $56 billion and $73 billion by 2030 from $7.4 billion today, the CPI said.
Considered an important alternative to fossil fuels, geothermal power can be accessed by building generating stations to harness the power of natural, underground heat.
Experts believe expanding geothermal capacity could help developing countries meet their energy challenges, while avoiding climate-changing power sources.
"Geothermal has the potential to play a big role in a low-carbon energy transition," Valerio Micale, a project manager with the Climate Policy Initiative, wrote in a briefing note on Wednesday.
"While deployment of wind and solar has taken off in recent years, deployment of geothermal has remained steady but unspectacular."
Geothermal is the cheapest power source in some developing countries with rapidly growing demand, and is economically competitive with other green sources, Micale wrote.
One reason why governments need to invest in the technology is that developers typically need to spend up to 40 percent of a project's costs before establishing if the project is feasible.
This has made private sector sources of financing reluctant to commit themselves, the CPI said, and it urged governments to help by financing initial feasibility studies for geothermal projects.
Turkey and Kenya were able to exceed analysts' forecasts on geothermal production "through a combination of solid regulatory frameworks and significant development finance support", the CPI said.
(Reporting By Chris Arsenault, by Tim Pearce. Please credit the Thomson Reuters Foundation, the charitable arm of Thomson Reuters, that covers humanitarian news, women's rights, trafficking, corruption and climate change. Visit www.trust.org)
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