Heat Recovery

Recovered thermal energy
for district heating networks.

District heating networks consume significant energy — and pay for every kilowatt-hour. Kefos installs liquid-cooled computing infrastructure adjacent to the network and delivers recovered thermal energy directly into it, at a fixed price, with no capital outlay required from the utility.

Recovered thermal energy for district heating networks

Our hydro-cooled containers use a liquid cooling loop that captures nearly all of the thermal energy generated by mining hardware. Rather than expelling this heat into the environment, the loop connects directly to your district heating network's return pipe.

The recovered heat works in tandem with your existing boilers — Kefos supplies the base load at a fixed contracted rate, while your boilers handle top-up when demand exceeds what the mining containers deliver. This interplay is accounted for in the commercial arrangement, and requires no changes to your existing infrastructure.

The mining operator sells heat to the municipality at a contracted rate — typically well below the cost of conventional boiler fuel — creating a direct financial relationship independent of Bitcoin prices.

Calculate your heat cost savings

Adjust system capacity, boiler cost, supply temperatures and monthly demand to model projected annual savings for your district heating network.

Currency
Annual Savings
vs. full boiler supply
Effective Heat Price
weighted avg kr/kWh
Heat Coverage
of annual demand covered
Heat Delivered
GWh / yr from system
Supplemental
GWh / yr still from boiler
Monthly heat supply breakdown
System Configuration
System capacity 2.00 MW
Boiler cost (self-supply) 8.50 kr/kWh Recovery price: 5.50 kr/kWh · spread 3.00 kr/kWh
DH supply temperature 80°C
DH return temperature 40°C
Monthly demand (MWh) — 13.56 GWh/yr
Import data
Drop or paste monthly data here

Accepted formats:
jan 1487 feb 1305 mar 1377 ...
1487, 1305, 1377, 1177, ...
1487  1305  1377 (space/tab)
1487\n1305\n1377 (one per line)

Numbers without month names are assumed Jan → Dec in order.

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