The Temelín-1 nuclear power plant in the Czech Republic has started generating electricity again following a planned outage and has switched to a longer fuel cycle of 14 months.

The plant began supplying electricity to the transmission system at 50% reactor power on 31 July. It should reach full power within a few days, state nuclear operator ČEZ said.

During the outage, engineers also began upgrading the plant’s control system using a new system supplied by US-based Westinghouse. In subsequent shutdowns, additional areas of the plant will also switch to the new system, ČEZ said.