Calculated energy savings and investment costs
Average annual demands before renovation:
- For heating purposes: 500 MWh
- For hot water preparation: 281 kWh/m2
- Natural gas: 80,000 nm3
Suggested implementations for energy savings (1 euro = 3.4528 Lt):
| Nn. | Means | Total planned investments (Lt) |
Energy savings (MWh/year) |
Planned saving (Lt/year) | Investments pay back time (years) | Implementation year | ||
| Energy | Exploitation | Total | ||||||
| 1 | Boiler house reconstruction | 226,647 | 171,75 | 19,236 | - | 19,236 | 16,5 | 1997 |
| 2 | External walls insulation | 220,587 | 134,000 | 12,065 | - | 12,065 | 22,5 | 2000 |
| 3 | Insulation of background floor | 33,402 | 36,90 | 4,147 | - | 4,147 | 11,3 | 1998 |
| 4 | Changing of windows | 216,861 |
121,80 | 10,843 | - | 10,843 | 22,3 | 1999 |
| 5 | Project and calculation | 12,000 | - |
- |
- |
- |
1997/99 | |
|
Total: |
709,498 | 46,880 | - | 46,880 | 16 | |||