AS:SCAN has announced that it will supply another Parat high-voltage electrode boiler to Gram District Heating Amba for use in the central heating sector in Denmark.
The boiler can use any leftover electricity from wind turbines, as well as engage in the balancing market to stabilise the grid frequency. It is specifically designed to operate at an extremely low-idle load, making it highly competitive for frequency regulation. The boiler delivered to Gram District Heating Amba is a medium-sized boiler of 10MW connected to a 15KV network.
For SCAN, this is another turnkey delivery, including the entire high voltage section, low voltage, automation, boiler and pipework. Ramboll, who was in charge of the tender, had performed a ratings system where suppliers were measured on price, technical solutions and service organisation. The scale went to 10, and SCAN scored 9.9, 10 and 10.
Parat’s IEH electrode boiler has been designed and developed by Parat Halvorsen’s in-house engineers and manufactured in its workshop in Norway for more than 20 years, to a compact design of up to 50MW in one unit. It allows users to switch from cold to full load in less than 15 minutes, with 30 seconds from minimum to full load. Minimum load is below 2%. Significantly, there is no current to earth, no electrode wear and the boiler requires only minimum maintenance.
Power from wind and solar energy can be used in the boiler for steam or hot water purposes. Hot water can be stored during peak production periods, and used when needed in district heating.
Parat’s remote monitoring system enables web-based monitoring of the boiler plant from anywhere in the world. This also includes online troubleshooting and upgrades of the control software from the Parat Halvorsen AS service centre in Norway. Another significant feature is that the electrode-boiler system can be delivered in a complete turnkey boiler house.
Parat Halvorsen sales director Martin Løvland said: "We made a major breakthrough after participating for the first time at Hannover Messe as an exhibitor last year.
"It was a particularly busy exhibition, the world’s leading event for industrial technology, and it gave us the opportunity to demonstrate how our system generates heat from renewable sources.
"We will be exhibiting again with a full scale electrode boiler at this year’s Hannover Messe 7-11 April."
