Ramiz Memidzan, 66, was a young boy when he last saw the village where he was born in southern Bosnia, before dam construction and the creation of Jablanicko Lake in the 1950s covered the site with 30m of water.
This year, he can see again the tombstones of its Muslim graveyard and broken railway tracks — remnants that jut out of the mud following the worst drought in at least 40 years in the Balkans, which has left countries that rely on hydropower struggling to maintain a steady electricity supply.
The dams on the Neretva river near the lake feed a system that normally produces an average of 2,000 megawatt-hours (MWh) of electricity per year, but the drought that began in August last year has shrunk output to just a quarter of that amount.
“I cannot recall when the lake has ever been so low,” Memidzan says as his hand points to what is left of the reservoir, one of five that supply power to southern Bosnia.
“There are no fish left here,” he adds, standing on his boathouse, stranded in the mud.
Hydropower accounts for most of Albania’s electricity output and about half of Bosnia’s, followed by Croatia and Slovenia at 40 percent, Serbia at 30 percent and Montenegro at 17 percent. Kosovo mainly relies on coal.
The drought has forced cash-strapped nations to import more power at higher prices. Bosnia, normally the one net power exporter in the region, paid 20 million Bosnian marka (US$13.65 million) to import electricity in January, compared with the same period last year when it earned 70 million marka from power exports.
Last month, a blizzard and temperatures as low as minus-30°C combined with the drought to put such a strain on ageing energy infrastructure that it came close to buckling. Governments had to suspend energy supplies to businesses and limit residential use to keep the lights on.
“These problems are a clear indication of how urgently this sector needs investments,” Bosnia’s regional energy minister Erdal Trhulj said in an interview. “Had there been any natural gas cuts, the system would have collapsed.”
Spot power prices in December and January were about 120 euros (US$160) per megawatt hour and then soared above 150 euros during last month’s storm, Nenad Savic of trading and investment group Energy Financing Team said in an interview.
Prices have since receded to 55 to 65 euros, but they are still higher than spot prices in Germany and countries further north, he added.
“There is a question whether the utilities will be able to recuperate from losses caused by drought and longer-than-expected outages,” Savic said.
The heavy snow last month would provide only a little relief to the dry conditions, with the spring melt not expected to lift reservoirs to normal levels, said Branislava Milekic, the general manager of Bosnia’s second-largest utility, EPRS.
New investment is needed in power plants and grids after the sector fell into disrepair during the Balkan wars of the 1990s.
Balkan states, as a part of their path to the EU, furthermore have pledged to liberalize their energy sectors and achieve EU power generation standards by 2015, which will require outside expertise and financing.
Bosnia, Serbia and Croatia are each hoping to lure up to 10 billion euros over the coming decade to invest in the grid, in new power plants to diversify supply sources and other projects.