Innovative solutions and best practices

Vienna, Austria – Winner of the Heat Pump City of the Year Award  2017

  • a systematic approach to an energy strategy: Aim to reduce energy demand & avoid local pollution => fuel switch
  • Recognition of the potential of central and decentral heat pumps
  • Annual energy report plus Information & promotion strategy:
    Funding scheme for renewable heat, storage and low temp heat
  • Online map of geothermal potential
  • Heat pump guidelines Fast growing city

Trondheim, Norway  – Special recognition for best visualisation of the heat pump technology HPCY 2017

  • Project name Moholt 50|50 reflects that the old buildings in the area are 50 years old, and that the new ones are built for the next 50 years
  • Use of CLT reduces the CO2 emissions more than 50% compared to a traditional steel and concrete building
  • Energy central have three heat pumps (3x 84kW) and one electrical boiler (300kW) as backup

Berlin, Germany – Best solution for the building renovation sector  HPCY 2017

  • Long term storage eTank: Usage and storage of surplus and low temp-erature yields from the solar panels as well as geothermal energy. Further potential: control energy
  • COP: 4,3 (12°/45°C),  COP 6 (12°/35°C)
  • – 90 % primary energy consumption

Hylke, Denmark  – Winner of the Heat Pump City of the Year Award  2016

  • The city Hylke has successfully phased out its oil consumption with approximately 30% in 12 months.
The result was achieved after a series of oil-fired boilers were replaced with a heat pump solution from Best Green
  • To ensure utilization of wind power through new flexible electricity consumption in
areas with no access to district heating. This will enable private and public consumers to save money on
heating while reducing CO2
  • At the school the heat pump system has after the first year in operation covered the entire heating requirement with a measured COP 3.2.o. At eight private households COP 3.0.

Gilze, Netherland  – Finalist HPCY 2016

  • The goal was to reduce waste energy on a larger scale
  • Thegrid has an enormous environmental relevance because when its fully operational it reduces the output of CO2 with 1650 ton per year which is equal to 50.000 tree’s a year
  • The grid operates with plain water, without additions and is 100% environment friendly, Temperature in the entry source loop varies between 8 and 16°, thus resulting in a COP of 4-6 in heating mode In cooling mode COP is apr. 15-20.

Seine Saint-Denis, France – Finalist  HPCY 2016

  • The SMIREC is a new district heating plant based on a massive geothermal drilling, which involves a 1.700m deep well and provides 40MWh of geothermal heat per year to the nearby cities
  • The “electrification” of the system with certified green energy would cut completely on site CO2 emissions due to fossil fuel consumption

Olot, Spain – Winner of the Heat Pump City of the Year 2015

  • The project is a pioneering multi-energy district heating and cooling in Spain
  • The COP: Heating, low temperature (radiant floor, 10/35) : 4,84
Cooling, medium temperature (radiant floor, 16/35): 5,12
Heating & cooling simultaneously: 9,00
  • 28 KWp solar system used to supply electricity to the heat pumps.

Hollola, Finland – Winner of the Heat Pump City of the Year 2015

  • The project will, in its first phase, provide heat for about 1500 households. The final target is to heat 4000
  • 75% of the district heat is origin from absolute clean source
  • The reduction of CO2 emission in district heat is in first phase 4 000 tons / annual

Drammen, Norway – People’s award 2015 

  • In 2009 the growing population of Drammen led to a reconstruction of the heating system in
order to meet the growing heat demand
  • With an installed capacity of 13.2 MW from heat pump, covering more than 75% of the annual heat demand of Drammen
  • Provide hot water at 90°.COP of 3.05 is achieved
  • The overall annual carbon savings of 15,000 t CO2 due to this project

Viborg, Denmark  – Winner of the Heat Pump City of the Year 2014

  • The heating pumps are dimensioned to cool a minimum of 10,500 MWh  process  heat a year.  For that purpose  2, 900 MWh electricity is used and 13,400 MWh district heating is produced in a year. Cop cool = 3.6 and cop heat = 4.6.
  • The heating pumps cool down the process cooling water from the machinery at Grundfos from 18⁰ C to 6⁰ C and 12⁰ C. The cooled energy is delivered to the district heating plant at respectively 46⁰ C and 67⁰ C.
  • Reduction of CO2 emission: 3,000 tons per year

Újszilvás, Hungary – Finalist HPCY 2014

  • Heat recovery from drinking water by heat pumps for heating in the village of Újszilvás
  • In the heat centers the higher then permitted temperature  is kept under 20° C by a self acting three way valve. The system has a total of 400 kWh eating power

Druskininkai, Lithuania – Finalist HPCY 2014

  • This project was implemented in a health resort Lithuania city Druskininkai for a “Grand SPA Lietuva”.
20.000 m2 wellness complex. Heating and cooling demand is covered by the combination of air/water and brine/water heat pump
  • Heating energy balance: Heating 10-15 %/ DHW+Swimmingpool technology 85- 90% o SCOP of heat pump‘s system (including all circulation pumps): 2,9-3 .

HendrikIdoAmbacht, Netherlands – Finalist  HPCY 2014

  • The complex Sophiataete fulfils different health functions
  • Reduction of CO2 emissions by 62% of the collective installation compared to fossil combustion
  • The possibility of a 100% all-electric generation for collective systems
  • Winter situation: System COP heating W10/W40: 5,51 System COP hot tap water W10/W65: 2,45

Amstetten, Austria – Winner of the Heat Pump City of the Year 2013

  • This project using waste water heat as a heat source for heat pumps is an Austrian pilot project which aims to explore and to optimize the use of waste heat in the City of Amstetten
  • System: waste water heat exchanger;230 kW heat pumps, three 1.500 liter tanks; 210m district heating pipe
  • HP covers 99,9% of energy demand; existing gas-boilers as back-up
  • COP 5.6: only 18% of energy comes from electricity > 82% is renewable heat + use of hydro-electricity  emission free operations

Etten-Leur, Netherlands – Winner of the Heat Pump City of the Year 2012

  • project with heat pumps in 20 dwellings in neighbourhood was realised (20 individual heat pumps connected to a collective groundwater heat source); also a school complex was fitted with a heat pump system
  • 2005: decision for new “zero-energy” neighbourhood (Schoenmakerhoek): In total over 1000 houses all with individual closed loop GSHPs.One of the largest projects in the world, high building density (100 houses/hectare). Monitoring system for evolution of the ground temperatures has been set up