Expanding the horizons of power-to-heat: Cost assessment for new space heating concepts with Wind Powered Thermal Energy Systems

Cao, Karl‐Kiên; Nitto, Alejandro Nicolás; Sperber, Evelyn; Thess, André

doi:10.1016/j.energy.2018.08.173

Cited by 31 publications

(24 citation statements)

References 20 publications

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“…Moreover, the highest recorded interest rate is 5% in Finland (year 2000-2020). In this case, the new energy system is first fixed to get the CAPEX)and then the optimization is performed to receive the OPEX, which together yield the total yearly cost in Equations (2). Tables A1-A3 in Appendix A provide details on the input parameter values used.…”

Section: Of 17mentioning

confidence: 99%

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Effect of Heat Demand on Integration of Urban Large-Scale Renewable Schemes—Case of Helsinki City (60 °N)

Arabzadeh

Lund

2020

Energies

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Heat demand dominates the final energy use in northern cities. This study examines how changes in heat demand may affect solutions for zero-emission energy systems, energy system flexibility with variable renewable electricity production, and the use of existing energy systems for deep decarbonization. Helsinki city (60 °N) in the year 2050 is used as a case for the analysis. The future district heating demand is estimated considering activity-driven factors such as population increase, raising the ambient temperature, and building energy efficiency improvements. The effect of the heat demand on energy system transition is investigated through two scenarios. The BIO-GAS scenario employs emission-free gas technologies, bio-boilers and heat pumps. The WIND scenario is based on large-scale wind power with power-to-heat conversion, heat pumps, and bio-boilers. The BIO-GAS scenario combined with a low heat demand profile (−12% from 2018 level) yields 16% lower yearly costs compared to a business-as-usual higher heat demand. In the WIND-scenario, improving the lower heat demand in 2050 could save the annual system 6–13% in terms of cost, depending on the scale of wind power.

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Section: Of 17mentioning

confidence: 99%

“…In particular, in the northern cities, the heating sector focusing on decarbonization will be important as a part of the overall climate change mitigation. The heating sector represents a major part of the final energy use in northern climates [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Demand on Integration of Urban Large-Scale Renewable Schemes—Case of Helsinki City (60 °N)

Arabzadeh

Lund

2020

Energies

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“…Power-to-heat or even more specifically Wind power thermal energy systems (WTES) (see e.g. [6]) are terms gaining importance in the literature.…”

Section: Introductionmentioning

confidence: 99%

Business and socioeconomic assessment of introducing heat pumps with heat storage in small-scale district heating systems

et al. 2019

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Fossil fuel-based CHP plants have a long history of supplying district heating (DH) in Denmark, however small-scale systems are progressively switching to biomass boilers for economic reasons. Biomass, however, should be reserved for other purposes where a storable fuel is pertinent. This paper investigates the transition of DH on the Danish renewable energy island Samsø. While already renewable energy-based through the use biomass, the system is neither socioeconomically optimal nor optimal in terms of integrating fluctuating renewable energy sources or using biomass resources appropriately. EnergyPLAN-based energy systems analyses of heat pump (HPs) replacing DH biomass boilers are used to investigate system impacts, the ability to integrate fluctuating renewables and overall systems costs. Secondly, optimal business economic design and operation of the DH plant are analysed using the energyPRO model where plant operation is optimised against an external electricity market.While heat pumps have a positive impact when factoring in the ability to exploit locally available fluctuating renewable energy sources and local biomass availability constraints, business economic analyses demonstrate a more uncertain feasibility of the potential switch and also demonstrate that significant flexibility through heat storage and overcapacity on heat pumps does not pay.

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“…A further advantage is the possibility to share some parts of the plant with CSP-based or biomass-based plants that use TES. The same concepts are used in [73] for a WTES application with direct conversion of rotational energy into heat, also including on-site shares of electricity and heat generation. From another point of view, passive heat storage has been considered, consisting of storing heat in the building structure when a given indoor air temperature variation is allowed.…”

Section: Wind Energy Systemsmentioning

confidence: 99%

Thermal Energy Storage for Grid Applications: Current Status and Emerging Trends

et al. 2020

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Thermal energy systems (TES) contribute to the on-going process that leads to higher integration among different energy systems, with the aim of reaching a cleaner, more flexible and sustainable use of the energy resources. This paper reviews the current literature that refers to the development and exploitation of TES-based solutions in systems connected to the electrical grid. These solutions facilitate the energy system integration to get additional flexibility for energy management, enable better use of variable renewable energy sources (RES), and contribute to the modernisation of the energy system infrastructures, the enhancement of the grid operation practices that include energy shifting, and the provision of cost-effective grid services. This paper offers a complementary view with respect to other reviews that deal with energy storage technologies, materials for TES applications, TES for buildings, and contributions of electrical energy storage for grid applications. The main aspects addressed are the characteristics, parameters and models of the TES systems, the deployment of TES in systems with variable RES, microgrids, and multi-energy networks, and the emerging trends for TES applications.

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Expanding the horizons of power-to-heat: Cost assessment for new space heating concepts with Wind Powered Thermal Energy Systems

Cited by 31 publications

References 20 publications

Effect of Heat Demand on Integration of Urban Large-Scale Renewable Schemes—Case of Helsinki City (60 °N)

Effect of Heat Demand on Integration of Urban Large-Scale Renewable Schemes—Case of Helsinki City (60 °N)

Business and socioeconomic assessment of introducing heat pumps with heat storage in small-scale district heating systems

Thermal Energy Storage for Grid Applications: Current Status and Emerging Trends

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