Case________
School in Nova Gorica*
* School in the west of Slovenia, close to the Italien border
5.200 m2
three upper floors + ground floor + basement
89.658 €
annual cost savings
439.324 €
increased cost due to investment in SUNOMAX2020 technology
4,9 YEARS
for investment payback
6,6 kWh/m2
energy consumption per year
4.593 €
energy costs per year
English version
German version
Case
Results________
WINTER 2018/2019
COSTS EXPECTED
For heating per year
Expected heating costs for the original project (using district heating system)
= 58.252 €
COST SAVINGS
Actual costs for the SUNOMAX2020 system
(28% heat pump operation, 20% operation of underground thermal energy storage, 52% operation of solar panels)
= 1.347 €
Savings 56.905 €
For domestic hot water per year
Expected costs for domestic hot water for the original project (using district heating system + electric heater)
= 2.040 €
Actual costs for the SUNOMAX2020 system
(84% operation of solar panels + 16% heat pump operation)
= 150 €
Savings 1.890 €
Case
Results________
SUMMER 2019
COSTS EXPECTED
For cooling per year
Expected costs for cooling for the original project (434 kW chiller)
= 27.440 €
COST SAVINGS
Actual costs for the SUNOMAX2020 system
(groundwater free cooling)
= 1.037 €
Savings 26.403 €
For ventilation per year
Expected costs for ventilation for the original project (ventilation systems with 60% waste heat recovery)
= 6.520 €
Actual costs for the SUNOMAX2020 system
(using ventilation systems with 90% waste heat recovery and retrofitted CO2 sensors)
= 2.060 €
Savings 4.460 €
Energy
Consumption________
- ventilation
- heating
- cooling
- hot water
- pumps
- control systems
6,6 kWh/m2 per year
original project ... 231,218 kg CO2 per year
SUNOMAX2020 ... 14,717 kg CO2 per year
Savings 215,501 kg CO2 per year
