German Vice Chancellor Robert Habeck said on Friday that allied support for Ukraine needs to increase as the country faces growing pressure from attacking Russian forces.
Habeck said Ukraine has a right to expect promises from Western supporter will be kept, and that Germany and other partners need to increase their support.
Habeck said that the Ukrainian government's specific requests from Germany related to the military and energy sectors: "Russia has once again used great force to attack the country's energy infrastructure and, because the violence was so brutal, has also achieved a few hits."
Germany is supplying generators and is also looking into the possibility of supplying gas turbines and parts of power plants, Habeck said.
Discussions also addressed whether renewable energy like solar power systems could address Ukrainian needs.
"A large power plant is a target, but 1,000 solar roofs are difficult to hit and 30 wind turbines are also difficult to hit," said Habeck, who also serves as Germany's economy minister.
Ukraine is also concerned with reconstruction and economic prospects as well as the path towards the European Union's single market, Habeck said.
On Thursday, Habeck met Ukrainian President Volodymyr Zelensky to discuss the military situation, as well as German economic development and business investment in the country.
German leaders have been publicly campaigning for NATO allies to supply Ukraine with additional Patriot air defence systems, and last week pledged to send an additional Patriot system from German military stocks.
Ukraine is suffering badly from Russian air attacks with drones, missiles and glide bombs.
In response to a question about the lack of military aid for Ukraine from the United States, Habeck said that Germany, as the strongest economic power in Europe, had "a new task."
He called for an increase in arms production, noting that weapons are in demand both for Ukraine and for the German military.
Habeck began Friday in a bomb shelter in Kiev because of the threat of incoming Russian missiles and drones, with an air raid alarm was triggered at 4:40 am (0140 GMT).
Habeck and his entourage spent about an hour and a half seeking shelter in the underground parking garage of their hotel before the all-clear signal was given.
According to the Ukrainian Air Force, several missiles were the cause of the air raid alarm, which initially headed for northern Ukrainian areas and then veered off course.
Ukrainian air defence authorities said that 15 of 22 missiles and all 14 drones were intercepted during the night.
Habeck arrived in Ukraine on Thursday. Later on Friday he travels on to Moldova, where he will meet Moldovan Prime Minister Dorin Recean.