Size a large-scale solar district heating plant with seasonal thermal energy storage (STES).
Input Parameters
Results
--
Total Heat Demand
GWh/yr
--
Collector Area
m²
--
STES Volume
m³
--
Land Required
hectares
Note: Solar district heating achieves 40-60% solar fraction with seasonal storage. BTES (borehole) or PTES (pit) storage has 60-90% efficiency.
Reference
Total Demand = Homes x Demand/Home [GWh/yr]
Solar Contribution = Total x Solar Fraction
Collector Area = Solar GWh / (Radiation x Eff)
STES Volume = Seasonal Store / (ΔT x 1.16 kWh/m³/K)
Land = Collector Area x 2.5 spacing / 10000