Norway said Sunday that it would provide 1.1 billion kroner ($103 million) to Ukraine to help repair its energy infrastructure and secure the country's electricity supply before next winter.

"Russia is carrying out massive, systematic attacks to paralyse the power grid, but Ukrainians are working day and night to maintain essential electricity supplies for the population," Prime Minister Jonas Gahr Store said in a statement.

According to new estimates, more than 50 percent of Ukraine's power production capacity has been destroyed, the government said.

"We are in close dialogue with Ukraine on how it can use these funds most effectively. The Ukrainians themselves have the best insight into what is needed," Store said, adding that it was important to begin infrastructure repairs before the onset of winter.

Norway said it had already been decided that 120 million kroner would go toward repairs in the Kharkiv area, which has been hit particularly hard by Russian attacks recently.

Solar panels will be installed at seven maternity units and operating theatres in the Kharkiv area, Store said in the statement, which was issued as he attended a Ukraine peace summit in Switzerland.

In 2022, Norway provided 2.1 billion kroner in funding to the Ukrainian energy sector, and 1.9 billion kroner last year.

The Scandinavian country has pledged 75 billion kroner in military and civilian aid to Ukraine for the five-year period 2023-2027, with funding allocated each year in line with Ukraine's needs.