Economy Minister Peter Altmaier told public television Monday that "affordable" energy pricing and energy security would be key aspects as government sought to implement the coal-exit compromise recommended by a multi-interest 28-member commission on Saturday.

Chancellor Angela Merkel's coalition government would "do everything to ensure that consumers are protected from [retail] power price increases resulting from the switch from coal to renewable energy sources," Altmaier told ZDF television.

"Affordability and reliability in energy supply are, in any case, very high priorities," he said, adding that already in Germany photovoltaic plants had become "significantly cost-effective; in some cases a third less than the prices we paid a few years ago."

Altmaier (pictured left above) said two sets of rapid legislation were needed for Germany's lignite extraction regions – its Rheinland reserves in the western state of North Rhine-Westphalia, its eastern Lausitz region, spanning the states of Saxony and Brandenburg, and brown coal sites in Saxony-Anhalt state.

Read more: Hambach Forest to be saved, say environmentalists

One legislative set would cover the question of "how do we create new jobs" as well as how the affected regions would be assisted, Altmaier said, stressing that this must be decided "before power stations are switched off."

The second legislative set would specify "when can which power plant be removed from the grid, in which sequence, in which year, so that the lights don't go out, and that power comes out of the socket, and everyone knows that Germany remains a country with a high security of supply."

Legislative certainty needed

Saxony's premier Michael Kretschmer (picture right above) - like Altmaier a member of Merkel's Christian Democrats (CDU) - said it was vital "in the coming days" that the federal government sought to create legislative certainty by April.

"We need a legislative fixation of these measures," Kretschmer told Dusseldorf's Rheinische Post (RP) newspaper while urging "all other participants" to respect the compromise and "not bring it into question."

'Well invested money'

Saturday's compromise - recommended by trade union, environmentalist, scientific and economic representatives – foresees 40 billion euros in flanking payments to cushion fossil-fuel shutdowns while keeping electricity prices stable.

Federal Environment Minister Svenja Schulze, a center-left Social Democrat included in Merkel's Cabinet, told German DLF public radio that the intended expenditure would be "well invested money."

"Not to act would be significantly more expensive," said Schulze.

Nicola Beer, general secretary of the opposition business-friendly liberal Free Democrats described the commission's finding as a "very expensive compromise."

'Significant' cut in jobs

RWE energy utility chief Rolf Martin Schmitz in an RP interview said he reckoned by 2023 on a "significant" reduction in jobs, first at power stations facing closure, and medium-term at open-cast lignite extraction mines.

Schmitz said RWE would cooperate with trade unions to ensure that the job cuts were enacted in a "socially responsible manner so that the employees do not become the victims of political decisions."

A positive aspect was the commission's almost unanimous recommendation, said Schmitz. "We need consensus and planning certainty."

Bitter protest preceded the commission's coal-exit compromise

Germany trailing Paris pledge

A total of 12.5 gigawatts of power from coal-fired power generation is to be removed from Germany's grid by 2022 under the commission's recommendation.

Without this, Germany would fail to adequately slash fossil-fuel emissions, mainly carbon dioxide, pledged as part of the 2015 Paris UN treaty that is supposed to restrain climate warming to 1.5 degrees Celsius compared to pre-industrial times.

Looking ahead to 2030, further lignite and hard coal plants are to be shut down successively, with the wrap-up deadline of 2038 possibly brought forward to 2035.

Exit by 2030 'preferable'

An earlier coal exit by 2030 was "preferable," Kiel-based climate researcher Mojib Latif told the Frankfurter Rundschau newspaper, while praising the commission for injecting "movement" into the coal-exit issue "after years of standstill."

Climate expert Mojib Latif

"My hope is that it will be possible to accelerate the momentum in the expansion of renewable energies, in grid expansion and in energy storage," said Latif.

Carbon-dioxide emissions should be priced into energy tariffs to reflect the "true costs of the climate damage produced," said the professor at the Helmholtz Center for Oceanography known as Geomar in Kiel.