| Member state | NL |
| Case study | Minewater BV |
| Region>City>location | Limburg, south region of the Netherlands |
| Owner | Municipality of Heerlen |
| Operator | Minewater BV |
| Installed capacity ( MWth) |
Heat 4MWth Cold 8MWth |
| Installed geothermal capacity | 10 Megawatt |
| DH length (m) |
8 kilometer |
| Inhabitants connected | 125.000 m2 connected. 175.000 m2 contracted, will be connected |
| Design of the DH | By technical team minewater bv |
| subsurface and surface technical schemes |
Cluster development |
| Operating Temperature of the DH | Low temperature 28 degrees Celsius heat 16 degrees Celsius cold |
| Temperature of the geothermal ressource (production – injection) |
Production 28 degrees Injection 18 degrees Production cold 16 degrees Injection 24 degrees |
| Geothermal flow rate |
Heat 240 m3/hour Cold 480 m3/hour |
| Heat Pump if any (power in Mwe and COP) |
COP heating 5-7 COP cooling 4-6 |
| Production of heating and/or cooling | both |
| Dates of begining and end of construction | 1. mid 2007 – mid 2008 (large backbone) 2. end 2012 finalized mid 2013 (on clusterlevel) |
| Planing of the operation (from pre-studies to full completion) |
completed |
| Investement for geothermal well |
€ 5,5 mio Shallow geothermal in mine. |
| Investement for geothermal heating station |
€ 1,5 mio |
| Investement for DH network and substation |
€ 8 mio |
| Financing (banks, funds, PPP…) |
Municipality of Heerlen and funding programmes |
| Amount of Subsidies if any |
50% |
| Difficulties faced | Geological uncertainties Unequal level playing field with fossil fuels Cost mitigation |
| Administrative permits | 3 and 1 pending (under Heat Act) |
| Cost of the produced MWh | € 6,8 /Gj |
| Cost of the MWh sold | In between € 18- € 25/GJ incl VAT |
| Comparison with fossil energies | Problematic! |
| Pay back | 50 years for infrastructure 20 years installation |
| Innovation if any | Development to dh smart grid |
Minewater
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