EDF-Démász
Delivering a complete biogas plant and CHP unit for EDF-Démász.
Project overview
CHP electrical output
1,2
MW
Biogas production
10 000
Nm3/day
Our role
General contractor, covering permitting, construction, commissioning, and operation.
01
The client
EDF DÉMÁSZ was a Hungarian electricity utility responsible for power distribution and retail across the Southern Great Plain region. Its name combined the French owner, EDF (Électricité de France), with the legacy brand DÉMÁSZ (South Hungarian Electricity Provider). The Hungarian state, through National Utility Provider Ltd. (NKM), fully acquired the French-owned EDF DÉMÁSZ Zrt. in late 2016 and early 2017. Following the acquisition, the EDF brand was dropped; the company operated under NKM for a long period before ultimately becoming part of the state-owned MVM Group through further integration.
02
The facility
Our sister company, INWATECH Ltd., delivered the complete plant, capable of producing 10,000 Nm3/day of biogas, as general contractor, from permitting to the trial operation. We continue to actively maintain the facility to this day. We took over the reference from our sister company when Water4All was founded in 2021 and took on its biogas business.
Outcome
The biogas plant processes 17,000 tonnes of maize silage supplied by local agricultural producers and 19,000 tonnes of pig slurry each year. The 7.39 GWh of electricity it generates annually covers the needs of around 3,700 households, while its 6.94 GWh of thermal output heats the plant's own fermenters and nearby pig farms, and powers Karotin Kft.'s grain dryer. The digestate produced by the plant is used by local crop farms as a natural fertilizer substitute. The investment avoids roughly 16,000 tonnes of CO₂ emissions annually.