Type
ULTDH
Short description
ULTDH utilizing solar collectors for house heating
Location
Drake Landing Solar Community, Okotoks, Alberta
Country
Canada
End users
52 energy-efficient detached houses
Heat source
Solar
Description
2,293 m² solar collectors located on garage roofs, heat is stored in central unit and then distributed in the community
Cooling
Missing info
Heat source-network connection
Solar collectors
Booster HP or no for SH
No (water from DH is used to heat air which brings heat to consumer)
Booster HP, IHEU or DHSU for DHW
DHW is preprepared separately with solar collectors based on roofs and gas fired water heaters
TES
Seasonal storage (boreholes) and short-term storage (Tank TES)
Centralized/ Decentralized TES
Centralised
Category
1.10.1.1.1.
Costs/Price [€] (Investment; Operation; Cost for the consumer)
Distribution investment cost: 151 €/m; Annual distribution cost 4.9 €/GJ
Tsupply,min [°C] (network)
39.6
Tsupply,max [°C] (network)
40.2
Treturn [°C] (network)
31.9
Installed capacity [MW]
>700 kW solar collectors
Produced heating energy [MWh/year]
751.389
Heating demand [MWh/year]
712.222
Building heat demand kWh/m2/year
93.056
Network length [km] (if not specified-pipes, trench specified)
1.045 (trench)
Project area [km2]
0.0295
Plot ratio=(building area)/(land area)
0.26
Heat loss [%]
5
Heat density=(delivered heat)/(covered area) [MWh/m2]
0.024
LHD (linear heat density)=(total heat demand)/(length of network) [kWh/m/year]
694.444
LHPDD (linear heating power demand density)=(installed thermal power capacity)/(network length(pipes)) [kW/m]
0.565 (calculated from data-trench length)
Reference 1
http://celsiuscity.eu/wp-content/uploads/2019/11/Okotoks.pdf
Reference 2
https://www.iea-dhc.org/fileadmin/documents/Annex_X/IEA_Annex_X_Final_Report_2014_-_Toward_4th_Generation_District_Heating.pdf
