Remaining investment in Russia’s MBIR multipurpose fast neutron research reactor, which will be used to develop and test materials for Generation IV nuclear plants, is estimated at $1.36bn until its completion scheduled for 2028, according to a Russian government draft decree published in the federal journal for draft legislation.

The document evaluates the total cost of the project at $1.48bn, but about $120m has already been invested in MBIR development between 2011 and 2019. The total cost is about 34% higher than an unconfirmed figure of $1.1bn reported by state news agency Tass in June.

The Russian federal budget is expected to provide about $820m, or about 60%, of the $1.36bn needed to complete the MBIR project. The government already provided about $86m for the project between 2011 and 2019. The bulk of the new money will be provided between 2024 and 2028, a draft timetable shows.