Czech renewable energy exceeds grid limit

Czech renewable grid capacity faces tight limits as CSRES and CEPS warn that solar and wind, boosted by feed-in tariffs, risk grid stability despite 8,063 MW approved and 2,352 MW with connection contracts.

The installed capacity of wind and solar energy projects approved in the Czech Republic is nearly four times what can be safely fed into the country's electricity grid, energy distributors said.

The Association of Czech Regulated Electro-Energy Companies (CSRES) said the installed capacity of all projects approved by the end of January was 8,063 MW.

The limit from solar and wind projects in the EU that won't overload the grid is 1,650 MW until 2012, which corresponds to installed capacity of 2,200 MW, according to estimates made by the CSRES.

"We are obliged to connect to the grid or distribution system anyone who asks if it does not threaten a safe operation of the system. So our options are limited, it is up to lawmakers to resolve this," said Petr Zeman, chief executive of grid operator CEPS and a member of CSRES.

He added it was necessary to adopt legislation that would help eliminate applications which looked unviable.

The gap between the installed and actual output from renewable resources is so wide because production is affected by changing weather.

Meanwhile, projects with installed capacity of 2,352 MW have already signed connection contracts with operators, the association said.

CSRES includes the distribution units of central Europe's largest power utility CEZ, which has proposed a 30 MW solar facility recently, Czech power group PRE and grid operator CEPS.

Generous feed-in tariffs — which guarantee prices far higher than current market levels — have led to a boom in solar plants as solar growth in 2009 showed, which guarantee high return thanks to a drop in prices of photovoltaic panels.

The Czech parliament is debating a bill to reduce regulated prices for solar energy, aiming to temper the solar boom by more than the 5 percent a year than they are allowed to fall under current law.

CEZ Chief Executive Martin Roman wrote in an opinion piece for daily Mlada Fronta Dnes that current prices are around 10 times higher than those determined on power exchanges and said the situation was unsustainable and would cost consumers up to 1,200 billion crowns (US $63.59 billion) over the next 20 years.

The country's grid operator has also warned that a lack of legislation regulating connection of renewable sources could threaten stability of supplies because sudden swings in output pressures the system amid grid lock issues.

"We need to have some reserves to balance out the distribution system and the grid... to make up for the various outages and volatility mainly in production of renewables," Zeman said.

Eastern Europe, which relies mainly on coal and nuclear energy for its electricity production and where Bulgaria's renewable slowdown has been notable, is lagging behind its western neighbors in meeting EU renewable energy goals.

The EU wants 20 percent of its energy sourced from renewables by 2020, and its solar and wind plans outline the pathway from under 10 percent now. It also wants to reduce dependency on Russian gas imports, amid recurrent tension over gas supplies between Russia and Ukraine.

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