Residential energy end-use model as evaluation tool for residential micro-generation

Shimoda, Yoshiyuki; Taniguchi-Matsuoka, Ayako; Inoue, Takuya; Otsuki, Masaya; Yamaguchi, Yohei

doi:10.1016/j.applthermaleng.2016.09.066

Cited by 15 publications

(4 citation statements)

References 6 publications

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“…Continuous upgrading of energy efficiency standards for appliances and HVAC technologies is a critical cost-effective approach to achieve LED globally. Heat pumps (96) and fuel cells (97,98) are among the promising decentralized technologies for decarbonization and integration of intermittent renewable energy. While the adoption of high-efficiency HVAC systems is growing, penetration is slower due to critical barriers related to costs, burden of renovations, clarity of decisions for homeowners, and lack of reliable information.…”

Section: 31mentioning

confidence: 99%

Modeling Low Energy Demand Futures for Buildings: Current State and Research Needs

Mastrucci,

Niamir,

Boza-Kiss

et al. 2023

Annu. Rev. Environ. Resour.

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Buildings are key in supporting human activities and well-being by providing shelter and other important services to their users. Buildings are, however, also responsible for major energy use and greenhouse gas (GHG) emissions during their life cycle. Improving the quality of services provided by buildings while reaching low energy demand (LED) levels is crucial for climate and sustainability targets. Building sector models have become essential tools for decision support on strategies to reduce energy demand and GHG emissions. Yet current models have significant limitations in their ability to assess the transformations required for LED. We review building sector models ranging from the subnational to the global scale to identify best practices and critical gaps in representing transformations toward LED futures. We focus on three key dimensions of intervention (socio-behavioral, infrastructural, and technological), three megatrends (digitalization, sharing economy, and circular economy), and decent living standards. This review recommends the model developments needed to better assess LED transformations in buildings and support decision-making toward sustainability targets.

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Section: 31mentioning

confidence: 99%

Modeling Low Energy Demand Futures for Buildings: Current State and Research Needs

Mastrucci,

Niamir,

Boza-Kiss

et al. 2023

Annu. Rev. Environ. Resour.

Self Cite

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“…An optimal design and control for the thermal energy storage were worked out, concluding that the SOFC-primed micro cogeneration system could have reduction of 26.0 % and 30.8 % in annual primary energy consumption and CO 2 emission respectively against the conventional system. Shimoda et al [17] evaluated the impacts of the dissemination of SOFC (and others) micro-generation in the residential sector on urban-and grid-scale energy systems. They used an urban-scale energy end-use simulation model in order to evaluate the potential contribution of residential cogeneration systems to energy conservation and global warming mitigation on a city scale.…”

Section: 1literature Review On Sofc Small Cogeneration Systemsmentioning

confidence: 99%

Studying a Hybrid System Based on Solid Oxide Fuel Cell Combined With an Air Source Heat Pump and With a Novel Heat Recovery

Vialetto

Noro

Rokni

2018

Journal of Electrochemical Energy Conversion and Storage

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In this paper, a new heat recovery for a microcogeneration system based on solid oxide fuel cell and air source heat pump (HP) is presented with the main goal of improving efficiency on energy conversion for a residential building. The novelty of the research work is that exhaust gases after the fuel cell are first used to heat water for heating/domestic water and then mixed with the external air to feed the evaporator of the HP with the aim of increasing energy efficiency of the latter. This system configuration decreases the possibility of freezing of the evaporator as well, which is one of the drawbacks for air source HP in Nordic climates. A parametric analysis of the system is developed by performing simulations varying the external air temperature, air humidity, and fuel cell nominal power. Coefficient of performance (COP) can increase more than 100% when fuel cell electric power is close to its nominal (50 kW), and/or inlet air has a high relative humidity (RH) (close to 100%). Instead, the effect of mixing the exhausted gases with air may be negative (up to −25%) when fuel cell electric power is 20 kW and inlet air has 25% RH. Thermodynamic analysis is carried out to prove energy advantage of such a solution with respect to a traditional one, resulting to be between 39% and 44% in terms of primary energy. The results show that the performance of the air source HP increases considerably during cold season for climates with high RH and for users with high electric power demand.

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“…Top-down approaches on the technical and economic potential of micro-generation are more common than bottom-up approaches (e.g., [38][39][40]). However, one commonality with smart technologies research is that they tend to focus on the domestic sector rather than SMEs.…”

Section: Methodsmentioning

confidence: 99%

The Potential of Smart Technologies and Micro-Generation in UK SMEs

Warren

2017

Energies

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Small-to-medium-sized enterprises (SMEs) make up 99% of businesses and contribute 13% of energy demand globally. However, much of the demand-side energy research and policy attention to date has focused on the domestic, large commercial and industrial sectors. Previous research on SMEs has primarily concentrated on the drivers and barriers to the adoption of energy efficiency measures. However, less attention has been given to other areas of demand-side management in SMEs, such as the role of 'smart' technologies and micro-generation. The paper aims to contribute to filling this gap. To analyse the potential of smart technologies in UK SMEs, a quantitative model is developed to assess seven categories of smart technologies in ten non-domestic sectors. Overall, the results suggest that smart technologies within the UK SME market offer significant estimated annual energy savings potential of~£8.6 billion against an estimated energy spend of~£49.7 billion (representing~17% savings potential on energy expenditures). From the smart technology categories examined, fleet management, integrated building management systems and smart meters have the potential to offer the greatest energy savings to SMEs, providing estimated total energy savings of £7.5 billion annually. To analyse the potential of micro-generation in UK SMEs, interview-based qualitative research was undertaken with 17 SMEs to explore the drivers and barriers to its adoption. The research found that the initial costs, technical feasibility and planning permission on historical buildings were the main barriers, and that the 'green' marketing potential of micro-generation, coupled with ethical reasons and feed-in tariffs, were the main drivers.

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Residential energy end-use model as evaluation tool for residential micro-generation

Cited by 15 publications

References 6 publications

Modeling Low Energy Demand Futures for Buildings: Current State and Research Needs

Modeling Low Energy Demand Futures for Buildings: Current State and Research Needs

Studying a Hybrid System Based on Solid Oxide Fuel Cell Combined With an Air Source Heat Pump and With a Novel Heat Recovery

The Potential of Smart Technologies and Micro-Generation in UK SMEs

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