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

In 2015 Galp entered into a 75%-25% joint endeavor with Japan’s Mitsui to invest 400 million euros ($415 million) in the Hydrogenated Grease (HVO) plant, which will have a production capacity of 270,000 metric lots per year.

It will transform waste products, such as used oils, into sustainable biodiesel and biojet fuel, also called sustainable aviation fuel (SAF), using green hydrogen produced by an electrolyser powered by wind or solar energy.

Galp stated in a statement it received on Wednesday the three reactors to process biofuels, which will permit the HVO system to “produce SAF and biodiesel in 2026 ... putting Galp at the leading edge of developing low-carbon options important for the energy transition”.

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) (Reporting by Sergio Goncalves