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Aalborg University

District heating shows lower total socio-economic cost in future energy system

Submitted by Baerbel Epp on January 31, 2018
Costs for ST 1What would the economic impact on a future energy system be if one were to unlock the full solar thermal potential in Austria, Denmark, Germany and Italy? According to a study conducted by Aalborg University as part of the IEA SHC Task 52 research project Solar Heat and Energy Economics in Urban Environments, exploiting the maximum potential will result in significant cost reductions if solar heat is supplied not individually but by district heating. The graph shows small changes of between -0.1 % and +0.2 % in total socio-economic cost both in the District Heating scenario (expansion of district heating grids) and the Heat Savings one (retrofits reduce heat demand in buildings) when the maximum solar thermal potential is realised by using either decentralised solutions or district heating to supply heat to consumers. The key factor influencing the outcome is the cost of solar thermal systems. 
Graph: Aalborg University
 

IEA SHC Task 52: Solar Thermal’s Role in 2050 Energy Mix

Submitted by Baerbel Epp on September 29, 2017
Collector Installation in HamburgWhat role solar thermal will play in the energy sector in 2050 is one of the principal questions that the international Task 52 research project Solar Heat and Energy Economics in Urban Environments intends to answer. As part of this IEA Solar Heating & Cooling Programme task, Denmark’s Aalborg University chose four major solar thermal countries in Europe – Austria, Denmark, Germany and Italy – to model their 2050 solar share in national heat production. The university’s estimates range from 3 to 12 % based on country and scenario, which would require 4 to 175 million m² of collector area in each of the four nations. The solar share of all four was rather similar in high penetration scenarios, although climate, energy demand and network design vary significantly. That’s why the researchers from Aalborg concluded that “the findings can be applied to a variety of energy systems, including in countries that are not directly part of this study.” They also underlined the importance solar thermal could have in reducing pressure on scarce resources such as biomass.
Photo: Riccardo Battisti
 

Heat Plan Denmark (2009)

Submitted by Raquel Ponte Costa on October 29, 2010

This document explains a study carried out by the company Rambøll Denmark and the Aalborg University about the Danish district heating market and technologies.

The study was presented at the District Energy Climate Summit held parallel to the COP 15, the United Nations Climate Change Conference that took place in Denmark in December 2009.

The document reviews Danish policies, legislations and political targets set in the past to what regards the use of renewables. It also mentions different district heating projects with geothermal, CHP, solar thermal and others.

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