A lesson learned from the long-term subsidy program for solar water heaters in Taiwan

Chang, Keh Chin; Lin, Wei Min; Chung, Kung Ming

doi:10.1016/j.scs.2018.06.012

Cited by 15 publications

(6 citation statements)

References 30 publications

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“…However, the cumulative energy savings for a SWH depend on the service period of the SWH. Chang et al [21] showed that most Taiwanese SWHs have a service period of 15 years. The replacement statistics for SWHs in Kinmen County is shown in Figure 11.…”

Section: Resultsmentioning

confidence: 99%

“…Purchase-based subsidy programs have been initiated by the government of Taiwan (1986)(1987)(1988)(1989)(1990)(1991)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018) and some local governments (Kinmen County, Penghu County, Kaohsiung City, etc.) [21]. The payback period (6 to 15 years) depends on the region and the type of water heater that is being replaced [22].…”

Section: Introductionmentioning

confidence: 99%

“…In Taiwan, the value for A SC * ranges from 2.33 in Taipei City (the lowest) to 192.9 in Kinmen County (the highest) [21]. To formulate a new policy for the dissemination of SWHs, it is important to account for different factors.…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Subsidy Programs for Solar Thermal Applications: A Case Study for a Remote Island

2019

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Government intervention in the form of financial incentives is crucial for translating customer choice into a larger market share for solar thermal applications. The lengthy subsidy programs for solar water heaters in Taiwan have expanded the local market. On a remote island (Kinmen County), the area of solar collectors that are installed per 1000 inhabitants is 192.9 square meters. This study investigates a market-driven mechanism in terms of disposable income, household structure, building type and financial viability. The dual subsidy programs appear to have distorted the local market. The cumulative energy savings for solar water heaters that are installed is misleading because the systems are over-designed and there is a high replacement rate (or shorter service period).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Impact of Subsidy Programs for Solar Thermal Applications: A Case Study for a Remote Island

2019

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“…If the house is located in a low-sunlight area, the system's efficiency and its distribution decrease. The determination of 'geographical location' has mostly been used for Southeast Asian countries [21,34,[59][60][61], which have a high level of solar radiation, whereas it has been used sparsely for the UK [62,63], Australia [64], and Ireland [65]. Even within a country, the amount of solar absorption may vary based on 'geographical location'; therefore, these two parameters were considered the most important indicators in most articles [44].…”

Section: Technical Predictorsmentioning

confidence: 99%

Residential Solar Water Heater Adoption Behaviour: A Review of Economic and Technical Predictors and Their Correlation with the Adoption Decision

et al. 2021

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The successful deployment of the solar water heater (SWH) in the residential sector relies on the household’s bounded rational decision-makers to accept this system. The decision is shaped by a wide spectrum of predictors that form heterogeneous behaviour. Over the past years, research has employed a wide range of these predictors to understand their role in the decision and predict the behaviour and diffusion rate of SWHs. This review primarily identifies economic and technical predictors of 100 quantitative and qualitative studies on the residential SWH adoption decision. For the identified predictors, their characteristics and popularity are explored in a structured and coherent framework. The review further investigates the correlation between the identified predictors and the adoption decision from 97 of the 100 initially reviewed studies. The outcome of the research revealed 123 (56 economic and 67 technical) predictors that were classified into seven categories. ‘Financial incentives’ and ‘perceived attitude towards government policies’ are among the most popular economic predictors, whereas ‘house type’ and ‘knowledge of SWH’ were the most frequent technical factors in the research. Analysing the correlation between 99 predictors and the decision also unfolded that certain attitudinal attributes have a stronger influence on the residential SWH take-up than some common factors (e.g., electricity cost, technical variables).

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“…However, the steps taken and the investments made in renewable energy still fall short of expectations. For this, Turkey should rapidly carry out the necessary investments in the renewable energy field [7,8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Existing Solar Energy and Rainwater Potential in the Total Roof Area of Buildings: Izmit District Example

Kaya

2020

Advances in Materials Science and Engineering

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In this research, an exemplary study has been conducted in order to draw attention to the importance of evaluating the existing potential on the roofs of buildings. This research offers an evaluation of the existing solar energy and rainwater potential on the total roof area of the buildings in the Izmit district, which is a central district of Kocaeli province, one of the busiest centers of industry in Turkey. The calculations in this study were carried out by using the data obtained from various institutions. As a result of these calculations, the ratio of electrical energy that can be provided with photovoltaic systems on roofs to meet the annual electricity consumption of the district was found to be 203.581%, and the annual solar energy utilization rate for a family of 4 to bring 240 liters of daily use water temperature to 60°C with an 8 m2 collector area was calculated as 66%. In addition, the ratio of rainwater that can be collected from the total roof area of the existing buildings in the district to meet the domestic water consumed by the district was found to be 33.27%.

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A lesson learned from the long-term subsidy program for solar water heaters in Taiwan

Cited by 15 publications

References 30 publications

The Impact of Subsidy Programs for Solar Thermal Applications: A Case Study for a Remote Island

The Impact of Subsidy Programs for Solar Thermal Applications: A Case Study for a Remote Island

Residential Solar Water Heater Adoption Behaviour: A Review of Economic and Technical Predictors and Their Correlation with the Adoption Decision

Evaluation of the Existing Solar Energy and Rainwater Potential in the Total Roof Area of Buildings: Izmit District Example

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