{"id":435,"date":"2019-01-28T10:55:39","date_gmt":"2019-01-28T10:55:39","guid":{"rendered":"https:\/\/heatpumpingtechnologies.org\/annex62\/?page_id=435"},"modified":"2025-09-04T11:17:47","modified_gmt":"2025-09-04T11:17:47","slug":"nice","status":"publish","type":"case_studies","link":"https:\/\/heatpumpingtechnologies.org\/project62\/case-studies\/nice\/","title":{"rendered":"Nice"},"content":{"rendered":"

This first part of ecodistrict gathers 7 buildings of dwellings, offices, a nursery; representing almost 20000 m2.
The district heating system, specific to this ecodistrict is quite innovative. It is based on the treated water rejected by a water treatment plant located 500 m far from the ecodistrict.
This water is used as the cold source of 8 heat pumps for domestic hot water production and 5 heat pumps for heating and cooling.<\/p>\n\n\n\n
\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key facts<\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Buildings (7) <\/strong><\/td>\n\u00a0<\/td>\nHeat pump and source<\/strong><\/td>\n<\/tr>\n
Location<\/td>\nNice, France
<\/em><\/td>\n		\u00a0<\/td>\nNumber of HP<\/td>\n8 x 12kW HP for DHW & 5x HP for heating \/ cooling
<\/em><\/td>\n<\/tr>\n
Construction<\/td>\n2012<\/em><\/td>\n\u00a0<\/td>\nInstalled power<\/td>\nunknown<\/em><\/td>\n<\/tr>\n
Heat distribution<\/td>\ncollective<\/em><\/td>\n\u00a0<\/td>\nOperation mode<\/td>\nunknown<\/em><\/td>\n<\/tr>\n
Heated area<\/td>\n280 dwellings<\/em><\/td>\n\u00a0<\/td>\nHeat source<\/td>\ntreated water from water treatment plant
<\/em><\/td>\n<\/tr>\n
Level of insulation<\/td>\nvery good<\/em><\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
Heating system<\/strong><\/td>\n\u00a0<\/td>\nDomestic hot water <\/strong><\/td>\n<\/tr>\n
Type of system<\/td>\ncentral<\/em><\/td>\n\u00a0<\/td>\nType of system<\/td>\ncentral<\/em><\/td>\n<\/tr>\n
Max. temperature<\/td>\n45 \u00b0C<\/em><\/td>\n\u00a0<\/td>\nMax. temperature<\/td>\n55 \u00b0C<\/em><\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\nHot water storage<\/td>\n17.000 l<\/em><\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
Other information <\/strong><\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
Substations<\/td>\n4<\/em><\/td>\n\u00a0<\/td>\nInvestment costs<\/td>\n1 M\u20ac for geothermal installation<\/td>\n<\/tr>\n
Consumption for DHW, heating, cooling<\/td>\n40 kWhep\/m\u00b2a
<\/em><\/td>\n		\u00a0<\/td>\nRenewables ratio<\/td>\n69%<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Description of the technical concept<\/strong><\/span><\/p>\n

<\/p>\n

The system consists of:<\/p>\n