Japan added just under 4GW of solar capacity between 1 April 2013 and 31 October 2013, but three quarters of the capacity approved under its feed-in tariff remains unbuilt, according to official figures.
Between 1 July 2012, when the FiT was introduced, and 31 October 2013, a total of 24.5GW of PV had been approved for the scheme but just 5.67GW was connected to the grid.
Of projects larger than 1MW in capacity, 14.1GW were approved for the FiT, but only 1.1GW were operational. Just one in five project of 1MW or above has been connected.
While much of this capacity will have been approved too recently to already be up and running, the figures back up concerns that some developers are stalling work to increase profits.
In October 2013 the Ministry for Economy, Trade and Industry (METI) told PV Tech that it was considering revoking FiT approvals for projects that were delaying construction in order to maximise the benefit they receive from falling equipment costs.
METI has revealed that during the first seven months of the fiscal year (April to October 2013, inclusive) 870MW of residential PV was installed and 3,123MW of non-residential PV.
In the previous nine months, 969MW of residential and 704MW of non-residential solar was installed.