EU LIFE LIFE4HeatRecovery
EU LIFE - LIFE4HeatRecovery - Low Temperature, Urban Waste Heat into District Heating and Cooling Networks as a Clean Source of Thermal Energy
- Project duration: June 2018 - June 2022
- Project status: Ongoing
- Funding: 2014 - 2020 (Life+ /EU funding /Project)
- Total project budget: €5,428,665.08
LIFE4HeatRecovery will demonstrate a new generation of highly efficient district heating networks, which will be able to
- recover urban waste heat sources available at low temperature, i.e. lower than 40°C,
- in DH networks operated at conventional temperatures (3rd generation working around 70 to 90°C) or low temperature (5th generation at 10 to 25°C),
- by means of reversible heat pumps used either at heat recovery and or heat utilisation sides.
In particular, the LIFE4HeatRecovery networks will pursue the following objectives:
OBJECTIVE 1. TO DEMONSTRATE OPPORTUNITY AND EFFECTIVENESS OF WASTE HEAT RECOVERY FROM MULTIPLE URBAN SOURCES
New generation DH networks operated at very low temperatures can directly recover heat rejected by chillers (at around 30 to 40°C, e.g. from air-conditioners, supermarkets’ refrigeration and industrial processes), using rejected heat to cover heating needs in other buildings.
However, a large number of high temperature 3rd generation DH network exists, which normally can recover thermal energy only from high temperature industrial processes. In these cases, high-temperature water-to-water heat pumps are needed to rise the temperature of the heat rejected to the network’s levels.
OBJECTIVE 2. TO DEMONSTRATE MANAGEMENT STRATEGIES FOR DH NETWORK suitable to prioritise the harvest of waste energy sources compared to fossil fuels utilisation
interact with the electricity grid to negotiate the best prices from utility and customers perspectives for the electricity used by the heat pumps
OBJECTIVE 3. TO DEMONSTRATE TRADING SCHEMES allowing to manage thermal energy fed/purchased by/from different customers. The schemes are BUSINESS MODELS elaborated by the utility companies involved in the project.
With LIFE4HeatRecovery, customers assume both the role of energy consumers and producers. Trading schemes will be elaborated having the energy users as a focal point, trying to gather social acceptance and triggering the wide adoption of the solutions.
OBJECTIVE 4. TO DEVELOP FINANCIAL SCHEMES ENABLING LARGE PUBLIC AND PRIVATE INVESTMENTS TO BE MOBILIZED
LIFE4HeatRecovery activities will also be focused on the development of innovative financing mechanisms based on public-private collaboration, contributing to the uptake and large-scale replication of reliable business cases.
To achieve the above objectives, the following activities will be performed.
ACTIVITY 1 (OBJECTIVE 1). Two approaches will be addressed and demonstrated in 4 real networks to recover low temperature waste energy:
1. Direct waste heat recovery in low temperature DH networks
2. Waste heat recovery in high temperature DH networks by means of heat pumps
For each of the demonstration sites, prefabricated skids will be designed (Action A.2) and manufactured (Actions C1 to C4), including all necessary hydraulics, electric and electronic components. The skids, designed to connect the waste heat source to the network, will be manufactured in selected factories before transportation on site and installation.
Prefabrication, standardisation and modularity will be distinctive, innovative design drivers guiding the developments. Thanks to this strategy, design and installation time and errors are minimised. Moreover, manufacturing costs reduction is pursued.
ACTIVITY 2 (OBJ. 2). Management strategies will be
assessed and simulated, accounting for the full complexity of the built
environment, adjusting to old, refurbished and new buildings’ loads.
This activity will be developed mainly in Action D.1 (Monitoring of the technical and environmental impact), as the strategies elaborated, monitored and simulated with respect to the 4 demonstration networks will be used to infer viability, reliability and finally environmental and socio-economic impact scenarios by varying the project technologies’ penetration in the networks after project end.
ACTIVITY 3 (OBJ. 3). The approach integrating distributed
waste energy requires a change of paradigm to move forward from the actual
“monopolistic” generation, as multiple actors can play both the role of energy consumer
and provider, profiting economically from their waste heat provided to the
network. Trading Schemes will be studied (Action C5) allowing thermal energy exchange
on this “free-market”.
The elaboration of Trading Schemes will be supported by geo-localised data of waste and renewable heat sources available on the territory, gathered in a GIS tool developed (Action C.6).
ACTIVITY 4 (OBJ. 4). LIFE4HeatRecovery will analyse
the Levelised Cost of Energy and Return On Investment of the demonstrated
technologies when funded with a composition of infrastructural funds, large
private investment funds and local citizen driven financing. Based on this
result and on the Trading Schemes, financing solutions will elaborated (Action
Four main Results are expected following above
objectives and activities.
RESULT 1 (OBJ 1). PREFABRICATED SKIDS
The beneficiaries will devise and demonstrate modular and standardised prefabricated skids to integrate waste heat sources in DH networks. 4 different skids are foreseen with respect to the 4 demonstration sites:
- 2 solutions including heat pump to recover heat in low-temperature networks (COGEME, MIJNWATER)
- 1 solution including heat pump to recover heat in high-temperature networks (WBR)
- 1 solution without heat pump to directly recover heat from sewers wastewater (UHRIG and ENISYST for WUESTEN)
RESULT 2 (OBJ 2). DATABASE OF DH NETWORK SOLUTIONS AND
WASTE HEAT SOURCES
The management strategies developed will be used to draft scenarios of waste heat recovery in DH networks (ACTIVITY 2). Thanks to monitored and simulated data, this will result in a reliable database of energy, environmental and economic performance.
Databases of suitable integration solutions and waste heat sources over the territory will be made public available, thus triggering the adoption on the market.
RESULT 3 (OBJ 3). TRADING SCHEMES
Trading strategies will be studied allowing thermal energy exchange on the DHC network’s “free-market”, and accounting for type of customer and legal aspects such as use of land/building, access to installations and responsibilities.
Trading strategies will stimulate acceptance of energy production practice from local waste heat.
RESULT 4 (OBJ 4). FINANCING SCHEMES
Although a number of pilot sites is actually in place, levelised cost of energy, reliability of the energy distribution, legal implications are not clear yet to investors, therefore producing lack of confidence and perception of high risk.
LIFE4HeatRecovery proposes a risk mitigation approach based on four pillars:
- The utilisation of reliable pre-engineered skids (Result 1)
- The databases of integration solutions and waste heat sources (Result 2)
- The trading schemes developed (Result 3)
- The synergic use of investments from public and private finance
Consequently, DH networks can be planned from the energy and revenues perspectives, based on reliable data made available. As a result, a Financing and Risk Management Plan for utility companies and investors will be elaborated, based on the assessed information.
4 real networks from 3 Member States will experiment technical and financial solutions, in order to assess their environmental and socio-economic performance.
Calixto S, Cozzini M, Manzolini G (2021)
More information: https://www.mdpi.com/1996-1073/14/2/379https://doi.org/10.3390/en14020379http://hdl.handle.net/10863/15955
Editorial office of Projects (2019)
More information: https://cordis.europa.eu/article/id/125297-putting-waste-hea ...http://hdl.handle.net/10863/13930
Autori vari, Institute for Renewable Energy (2018)
Servizi a Rete
KWA Contracting AG
Helmut UHRIG Straßen- und Tiefbau GmbH
LINEA GROUP HOLDING SPA
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