Heat pumps versus combined heat and power production as CO2 reduction measures in Finland

Rinne, Samuli; Syri, Sanna

doi:10.1016/j.energy.2013.05.033

Cited by 59 publications

(40 citation statements)

References 20 publications

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“…On the other hand, Rinne and Syri (2013) [34] have recently suggested just the opposite order of preference in Finnish conditions. Our results show clearly how strongly assumption-dependent any preference order actually is.…”

Section: Discussionmentioning

confidence: 99%

“…COP can actually reach a level of over 4.0 (e.g., [34,40]), and we discuss the impact of the COP assumption on the results as well. HPs are typically not fitted to provide 100% of the needed heat due to decreasing overall efficiency, and at least during peak hours electric heating resistors are used as complementary heaters [41], but the COP figure takes this into account.…”

Section: Compared Energy Optionsmentioning

confidence: 99%

“…However, even currently the COP can be as high as over four (e.g., [34,40]) and in the future will presumably rise even higher. We ran the same analysis with COP 4.0 as well, but the resulting GHG reduction of 10% did not significantly affect the decision guidelines in the case of Härmälänranta.…”

Section: The Impact Of Copmentioning

confidence: 99%

“…However, they only used certain fixed emissions intensities and one allocation method to calculate CHP. In this paper, we reanalyzed the same case to evaluate the potential constraints and uncertainties in their study, and to see if certain assumptions would lead to the reverse selection criteria between HPs and CHP as suggested recently by Rinne and Syri (2013) [34] [35]. For our study, we added 25 kWh/m 2 /a for household electricity based on the statistics of new district heated apartment buildings in Finland [36], for a total of approximately 2600 MWh/a for the whole case area.…”

Section: Case Settingmentioning

confidence: 99%

“…CHP already dominates the heat supply in cities [28], and high climate mitigation aspirations have been placed on urban densification policies and further CHP utilization. It has been proposed that CHP results in environmental benefits in comparison to HPs in Finnish conditions (e.g., [34]), but opinions favoring HPs have been presented as well, and there is a current debate on which of the two is in fact superior. The issue is very complex due to the fact that currently heat production in Finland relies heavily on fossil fuels [28], which leads to significant GHG emissions in absolute terms despite the benefits of CHP.…”

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confidence: 99%

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Planning for a Low Carbon Future? Comparing Heat Pumps and Cogeneration as the Energy System Options for a New Residential Area

et al. 2015

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Abstract:The purpose of this paper is to compare, from an urban planning perspective, the choice between combined heat and power (CHP) and a ground-source heat pump (HP) as the energy systems of a new residential area in the light of the uncertainty related to the assessments. There has been a strong push globally for CHP due to its climate mitigation potential compared to separate production, and consequently it is often prioritized in planning without questioning. However, the uncertainties in assessing the emissions from CHP and alternative options in a certain planning situation make it very difficult to give robust decision guidelines. In addition, even the order of magnitude of the climate impact of a certain plan is actually difficult to assess robustly. With a case study of the new residential development of Härmälänranta in Tampere, Finland, we show how strongly the uncertainties related to (1) utilizing average or marginal electricity as the reference; (2) assigning emissions intensities for the production; and (3) allocating the emissions from CHP to heat and electricity affect OPEN ACCESSEnergies 2015, 8 9138 the results and lead to varying decision guidelines. We also depict how a rather rarely utilized method in assigning the emissions from CHP is the most robust for planning support.

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Section: Discussionmentioning

confidence: 99%

Section: Compared Energy Optionsmentioning

confidence: 99%

Section: The Impact Of Copmentioning

confidence: 99%

Section: Case Settingmentioning

confidence: 99%

mentioning

confidence: 99%

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Planning for a Low Carbon Future? Comparing Heat Pumps and Cogeneration as the Energy System Options for a New Residential Area

et al. 2015

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Energy and environmental performance of a heat pump in different power grid scenarios

2020

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Electric-driven heat pumps are one of the most encouraging systems that could support the raising of renewables contribution in civil sector energy consumption, especially with reference to the Countries with a high contribution of renewable energy sources in electricity generation mix. However, the evaluation of the effective energy and environmental performance of an electric heat pump meeting the space heating and cooling requests of a building has to consider several factors that affect the results. Among them great attention should be given to the variability of weather conditions in which the system operates, the changeability of the

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Ground Source Heat Pump

Reda¹

2016

Solar Assisted Ground Source Heat Pump Solutions

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Heat pumps versus combined heat and power production as CO2 reduction measures in Finland

Cited by 59 publications

References 20 publications

Planning for a Low Carbon Future? Comparing Heat Pumps and Cogeneration as the Energy System Options for a New Residential Area

Planning for a Low Carbon Future? Comparing Heat Pumps and Cogeneration as the Energy System Options for a New Residential Area

Energy and environmental performance of a heat pump in different power grid scenarios

Ground Source Heat Pump

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