An interdisciplinary debate on project perspectives
Table 27 Optimal scenario: Wedge 3 detailed calculations—1
Geothermal probes | ||
|---|---|---|
1. Footprint | ||
Probes | ||
Construction | 2.3200 | kWh/m |
24,378 | m3/m | |
Use | 1747 | kWh/m |
0472 | m3/m | |
Storage tank/boiler | ||
Construction | 418E−03 | kWh/m3 |
127E−01 | m3/m3 | |
Use | 400E−04 | kWh/m3 |
787E−03 | m3/m3 | |
2. Reference area | 33.63670 | m2 |
3. Thermal needs | 3.36367 | kW |
4. Geothermal power | 1.68184 | kW |
5. Drilling depth | 12,000 | m |
6. Number of 4-pipes probes | 140 | |
7. Storage tank/boiler | 84.000 | l |
Annual production | 44.198.62380 | kWh |
Gross cost of the plant | 4.633.885 | Eur |
Drilling | 1.512.000 | |
Installation and cementation of the probes | 504.000 | |
Heat pump | 1.513.652 | |
Storage tank/boiler | 29.400 | |
Design | 266.929 | 7.50% |
Works supervision, testing assistance | 177.953 | 5.00% |
Testing | 78.299 | 2.20% |
Safety charges not included in unit costs | 124.567 | 3.50% |
Surveys, assessments and investigations | 71.181 | 2.00% |
Connection to the grid | 177.953 | 5.00% |
Unforeseen costs | 177.953 | 5.00% |
Average service life | 25 | years |
Footprint/year | ||
1.588.390,31 | kWh | |
31.482,32 | m3 |