JAKARTA, July 24 (Reuters) - Indonesia, the world's biggest palm oil producer, is checking fuel with a view to increasing to 40% from 35% the share of palm-oil mixed into biodiesel next year, the energy ministry said.

If executed, the B40 required could increase biodiesel usage to approximately 16 million kilolitres (KL) next year, the ministry said, from 13 million KL approximated to be consumed in 2024.

"We hope the trials might be finished in December, so that complete application of B40 could be performed in 2025," energy ministry senior main Eniya Listiani Dewi stated in a declaration on Tuesday.

The Indonesian Biofuel Producers Association (APROBI) stated the market had the capability to satisfy B40 need, with installed capability expected to increase to 20 million KL each year next year from 18 million KL now.

"However we will need more raw products to fulfill B40 demand," Ernest Gunawan, the secretary general of APROBI told Reuters on Wednesday.

The biodiesel industry would need 13.9 million metric loads of crude palm oil to produce 16 million KL biodiesel next year, from the approximated 11 million tons needed this year, he included.

Indonesia's greatest palm oil association GAPKI stated a decline in exports meant there would suffice basic materials to provide the B40 mandate for now.

But the market would need to examine "which one would be more valuable", GAPKI chairman Eddy Martono stated, describing the possibility an increase in exports would make providing the domestic market less feasible.

Indonesia's palm oil output is approximated to reach 54.4 million tons in 2024, a 2.26% boost from in 2015, while exports are anticipated to decline by 2.47% to 29.5 million loads as domestic consumption rose, driven by biodiesel required.

The ministry had actually evaluated the biodiesel, blended with 40% of palm oil, on a train for the very first time previously today, while preparing to test the B40 mix on agriculture equipment, power plants and in the shipping industry, it said. (Reporting by Bernadette Christina and Dewi Kurniawati; Writing by Stanley Widianto; Editing by John Mair, Savio D'Souza and Barbara Lewis)