Type

NTDH

Short description

NTDH utilizing excess heat, solar heat and ground for village heating

Location

REKA village, Blatten-Belalp

Country

Switzerland

End users

Village

Heat source

Ground/Solar

Description

Solar collectors produce heat that can be directly used or can be stored in seasonal ground storage; HPs for SH and DHW; High and low temperature loop (high one needs more HPs and more solar heat); Possibility of connecting to Excess heat source

Cooling

Missing info

Heat source-network connection

HP (ground); Solar collectors

Booster HP or no for SH

HP

Booster HP, IHEU or DHSU for DHW

HP

TES

Vertical ground HEX (31 boreholes 150 m depth)

Centralized/ Decentralized TES

Centralised

Category

1.2.1.2.1.

Tsupply,min [°C] (network)

4.5

Tsupply,max [°C] (network)

8

Tsupply,min [°C] (at consumer substation)

35

SCOP=(reference annual heating demand)/(seasonal electricity consumption for heating) [-]

4.24

Installed capacity [MW]

1 HP 70 kW and 3 HPs 72 kW

Reference 1

https://doi.org/10.1016/j.rser.2018.12.059

Reference 2

https://www.researchgate.net/publication/265470872_Ferien_auf_der_SonnenENERGIEseite_-_REKA_Feriendorf_Blatten-Belalp

Number 31