LISBON, Dec 19 (Reuters) - Portugal's Galp Energia anticipates to start producing biodiesel and biojet fuel from waste in an industrial-scale system it is developing at its Sines refinery in 2026, the company, which is primarily an oil producer and refiner, said on Thursday.

In 2015 Galp got in into a 75%-25% joint endeavor with Japan's Mitsui to invest 400 million euros ($415 million) in the Hydrogenated Vegetable Oil (HVO) plant, which will have a production capability of 270,000 metric heaps each year.

It will change waste products, such as utilized cooking oils, into renewable biodiesel and biojet fuel, also understood as sustainable aviation fuel (SAF), utilizing green hydrogen produced by an electrolyser powered by wind or solar energy.

Galp stated in a declaration it received on Wednesday the 3 reactors to process biofuels, which will permit the HVO unit to "produce SAF and biodiesel in 2026 ... positioning Galp at the leading edge of developing low-carbon solutions important for the energy shift".

Galp is also investing 250 million euros in a 100 megawatt (MW) electrolyser unit to produce green hydrogen to power the refinery in Sines. ($1 = 0.9637 euros) ( by Sergio Goncalves