Projects per year
The city of Espoo, Finland is planning to develop Kera as a green suburb with high level of energy efficiency and low CO2 emissions, using a high share of renewable energy and recycled or reused energy. For reaching this target, in this study, renewable energy resources such as solar, wind and waste heat are investigated for the study region. Two different technologies comprising heat pump (HP) and heat-only boiler (HOB) are investigated to retrieve waste heat from a data centre and LuxTurrim5G smart poles to use in a low-temperature district heating network. We investigate various scenarios to supply the required energy for the HP (which receives electricity from the electricity market, photovoltaic (PV) system, wind turbine (WT) and hybrid PV/WT; 4 scenarios) and HOB (which works with electricity, forest fuel wood, biogas, ammonia, wood pellets and industry wood residue; 6 scenarios). We found that the heat pump scenario is an efficient and cost-effective way to retrieve waste heat from the data centre and 5G smart poles with an LCOE of 3.192 cent/kWh if electricity is produced by the PV system, and 3.516 cent/kWh when the heat pump receives its electricity only from the electricity market. (C) 2020 Elsevier Ltd. All rights reserved.
- low temperature district heating network
- waste heat recovery
- ejector expansion heat pump
- renewable energy
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- 1 Finished
Optimal transformation pathway towards the 2050 low-carbon target: integrated buildings, grids, and national energy system for the case of Finland
01/09/2017 → 31/08/2021
Project: Academy of Finland: Other research funding