BRUSSELS, May 21  -- European Commission President Jose Manuel Barroso on Wednesday called on Russia to agree on a future gas price based on market conditions in next talks.

In a letter to Russian President Vladimir Putin, Barroso expressed his willingness to reach structured solution over energy issues among the EU, Russia and Ukraine.

The trilateral meeting was scheduled for 26 May subject to confirmation by all parties involved. The aim of the trilateral meetings is to ensure continued gas supplies and transit. Concerns about the outstanding debt of Ukraine and the gas price for supplies to Ukraine will be discussed in order to find a solution by the end of May.

Barroso said that the meeting is expected to cover energy issues under the willingness of Ukraine government to pay the agreed upon arrears.

Barroso called on all sides to continue to engage in this process constructively and also agree on a future price that reflects market conditions.

"As long as the trilateral talks are on-going, gas flows should not be interrupted. I count on the Russian Federation to maintain this commitment," Barroso added.

At the same time, he underlined that a structural solution requires that all parties commit to ensure transparency and market opening in the Ukrainian gas sector, and transparent conditions for gas storage in, and gas transit via Ukraine.

"In this regard, the European Union is prepared to provide actual data on the incoming gas flow from Ukraine. I count on both the Russian Federation and Ukraine to also commit in the short term to provide actual data on gas inflow and transit through Ukraine," he said.

While Ukraine crisis has raised worries on EU's energy security,the 28-nation bloc are planning to outline a new strategy to reduce Europe's energy dependence and establish a energy single market.

"Increasing our security of supply has been an overarching goal of European energy and climate policies for years - now it is time to take it one step further," Barroso said.

"European cooperation and integration is the right way - the only way - to overcome such challenges. The Commission will make very clear proposals to the June European Council. It is then for our Member States to run with that ball," he added.

EU Energy Commissioner Gunther Oettinger also said a new European Energy Security Strategy is in urgent need.

"A key element for increasing energy security is of course the completion of the internal energy market and upgrading the gas and electricity infrastructure in the EU. The first call for proposals under the Connecting Europe Facility that helps to finance important projects is now open. In the first round 750 million euros (1026 million U.S. dollars) - out of a total of 5.85 billion euros until 2020 - will be made available." Oettinger said.

According to official figures,the EU imports 53 percent of the energy it consumes. Energy dependence is related to crude oil (almost 90%), to natural gas (66 percent). The value of imports is more than 1 billion euros per day. In 2013 energy supplies from Russia accounted for 42 percent of EU natural gas imports and 33 percent of oil imports. (1 euro = 1.37 U.S. dollars)