Residential solar water heating: California adopters and their experiences

Sanguinetti, Angela; Outcault, Sarah; Alston-Stepnitz, Eli; Moezzi, Mithra; Ingle, Aaron

doi:10.1016/j.renene.2021.02.031

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…It also asserted that social influence involves mimicking behaviors based on the opinions of individuals' closest and most intimate connections. When consumers observe family members, friends, and colleagues using clean energy systems, they are encouraged and recommended to adopt these systems themselves (Liobikienė et al 2021, Sanguinetti et al 2021. Azeez and Atikol (2019) contend that social influence positively impacts the intention to use products or services.…”

Section: Social Influencementioning

confidence: 99%

Predictors of solar water heater purchasing intention: an empirical analysis of residential behaviors in Hanoi city, Vietnam

Truong

2024

Environ. Res. Commun.

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Solar energy is a field that has grown rapidly in the world in recent years to solve the energy crisis and respond to climate change. Vietnam is a country with renewables energy potential including solar power and is pursuing net zero emissions target by 2050. This study explores factors affecting the residents' intention to buy solar water heater in Hanoi, Vietnam. We used theory of planned behaviors and technology acceptance model to build research model and hypotheses. A community survey was conducted with 450 households in 3 districts using cluster sampling method to collect information. We conducted descriptive statistical analysis, Cronbach's Alpha test, exploring factor analysis, conformity factor analysis and regression to identify and evaluate the impact of factors on solar water heater consumption intention. The results showed that there were significant factors affecting people's intention to buy solar water heater including attitude, perceived usefulness, price perception, social influence and financial support in which attitude is the most influential factor. Regarding social characteristic of respondents, we also found positively significant relationship between income, education level and intention to use solar heater. Recommendations for government and business included increasing awareness of the benefits and economic feasibility of renewable energy devices to consumers through social media, implementing financial incentives to support clean energy consumption behavior, and strengtheing the emergence of local solar evangelist groups in the communities. Future research can expand to other cities and explore more indirect factors affecting the green energy consumption behavior of Vietnamese residents.

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Section: Social Influencementioning

confidence: 99%

Predictors of solar water heater purchasing intention: an empirical analysis of residential behaviors in Hanoi city, Vietnam

Truong

2024

Environ. Res. Commun.

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“…This crisis requires collective effort for a better solution to it. In our daily lives we need energy for various purposes for domestic use and for various industrial energy applications (Arif et al, 2022;Guo & Yang, 2021;Sanguinetti et al, 2021). Hot water is one of the of the energy applications which is a daily necessity, which requires the two primary resources, energy, and usable water.…”

Section: Introductionmentioning

confidence: 99%

Solar water heating based on Bellville weather conditions in winter

Mdletshe

Msomi

Nemraoui

2023

Sustainable Energy res.

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Hot water supply is a daily necessity for various purposes ranging from industrial to domestic usage. However, the availability of hot water supply is dependent on reliable energy systems to heat the water. The load shedding plan declared the energy crisis in South Africa. Therefore, exploring alternative energy methods for hot water supply is critical, especially renewable energy resources. The use of natural resources such as solar energy to heat water is highly impacted or limited by the resources and environmental conditions existing at the area of interest. The use of the solar water heating system based on Bellville; South Africa was the undertaken study. This study reports on the experimental investigation that was conducted on a 50 L water geyser, which was solar-based. The test rig that was constructed and tested was an active solar water heating system. It was tested over a period of 10 days under the environmental conditions experienced in mid-winter season of South Africa. A 20 tubed evacuated tube collector unit was used, and it was found that in mid-winter of the highest water temperature that the system could reach was above 65 °C and the lowest was 30 °C. Intriguing outputs were found in the study which revealed that, on the days that yield the highest solar irradiation did not necessarily produce the hottest water temperature. Therefore, scrutinizing the impact of other parameters that contributed to the overall water temperature output was necessary. From the tests it was observed that the wind velocity together with other environmental parameters effectively had an impact on the water temperature yield by an evacuated tube system.

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“…Renewable energy sources that are most often used to meet the energy needs of buildings are the energy of the sun, wind, ground and the use of the so-called waste heat (heat recovery, i.e., from exhaust air in ventilation). The energy of the sun can be harvested by using solar collectors to prepare domestic hot water, such as in 227 houses in California (USA), the experiences of which are described in the paper [14], or those compared in terms of effectiveness in the article [15]. The collectors may be of the tubular type, such as those mentioned just now, or of the flat type, such as those reviewed in [16].…”

Section: Introductionmentioning

confidence: 99%

Peak Power of Heat Source for Domestic Hot Water Preparation (DHW) for Residential Estate in Poland as a Representative Case Study for the Climate of Central Europe

Amanowicz

2021

Energies

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Due to the energy transformation in buildings, the proportions of energy consumption for heating, ventilation and domestic hot water preparation (DHW) have changed. The latter component can now play a significant role, not only in the context of the annual heat demand, but also in the context of selecting the peak power of the heat source. In this paper, the comparison of chosen methods for its calculation is presented. The results show that for contemporary residential buildings, the peak power for DHW preparation can achieve the same or higher value as the peak power for heating and ventilation. For this reason, nowadays the correct selection of the peak power of a heat source for DHW purposes becomes more important, especially if it uses renewable energy sources, because it affects its size and so the investment cost and economic efficiency. It is also indicated that in modern buildings, mainly accumulative systems with hot water storage tanks should be taken into account because they are less sensitive to design errors (wrongly selected peak value in the context of the uncertainty of hot water consumption) and because they result in acceptable value of peak power for DHW in comparison to heating and ventilation.

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Residential solar water heating: California adopters and their experiences

Cited by 9 publications

References 15 publications

Predictors of solar water heater purchasing intention: an empirical analysis of residential behaviors in Hanoi city, Vietnam

Predictors of solar water heater purchasing intention: an empirical analysis of residential behaviors in Hanoi city, Vietnam

Solar water heating based on Bellville weather conditions in winter

Peak Power of Heat Source for Domestic Hot Water Preparation (DHW) for Residential Estate in Poland as a Representative Case Study for the Climate of Central Europe

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