City of Porvoo: Digital solutions to improve energy efficiency and the use of renewable energy in buildings

According to its strategy the city of Porvoo aims to be the forerunner in climate change mitigation. Porvoo’s target to become carbon neutral city includes the energy efficiency of buildings during their entire lifecycle, local energy production and utilization of renewable energy.

The main goals of the project are to reduce the energy consumption and optimize the use of renewable energy by using digital solutions. Shifting the timing of the consumption to low demand hours helps to optimize the use of renewable energy. To implement flexible energy demand, property-specific energy storages as well as systems for optimizing electricity and heat consumption and production are needed.

Reducing the energy consumption requires raising the awareness of the users, for example by making energy consumption visible. The goals will be promoted by implementing demonstrations in municipal properties, as well as information for the public.

Planned implementation

  • Bidirectional district heating and promotion of demand flexibility
  • Storage of solar energy
  • A novel monitoring system making the invisible consumption visible
  • Public engagement in climate change mitigation

Expected results

  • In selected buildings bidirectional district heating, solar thermal and photovoltaic systems, electric batteries and a heat storage.
  • Real-time energy monitoring in several buildings.
  • Share of locally produced renewable energy will increase.
  • Information about the potential of replacing central heating production with property-specific storage solutions during the summer months.
  • Experience and profitability information about using batteries for energy demand flexibility
  • Energy savings (>5 %) in participating kindergartens and schools, and 5-10% in the municipal offices.


  • January 2019 - December 2023
Old Porvoo City
© City of Porvoo

Additional information

Project Manager Matti Lehtovaara, tel. +358 40 676 1377

Director Real Estate Börje Boström, tel. +358 40 580 4131

City of Porvoo,

Published 2019-02-19 at 13:29, updated 2019-05-08 at 10:49