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Tsagarakis K.P.,Democritus University of Thrace | Karyotakis K.,University of Crete | Zografakis N.,Regional Energy Agency of Crete
Renewable and Sustainable Energy Reviews | Year: 2012

This paper provides a review of the energy saving policies and technologies on double glazing windows, central heating and air conditioning in office buildings. After which results of a face to face survey of 685 companies' managers are presented, which give insights into the facts that have influenced them to invest in the installation of double glazing windows, installation of thermostatic regulators, inverter air-conditioning technologies and on proper maintenance and filter cleaning of the air-conditioning units. Finally, their willingness to install such technologies after a technico-economic information session is elicited. The results show that among factors that make managers have a more energy saving profile are ownership, awareness status, recent establishment of the company and companies dealing with trade. Among factors that influence willingness to undertake specific energy efficient measures for heating and cooling appear to be ownership, recently established companies, companies dealing with services, companies with a high number of personnel, and companies with high ratios of electricity bill per annual turnover. © 2012 Elsevier Ltd. All right reserved. Source


Zografakis N.,Regional Energy Agency of Crete | Karyotakis K.,University of Crete | Tsagarakis K.P.,Democritus University of Thrace
Renewable and Sustainable Energy Reviews | Year: 2012

This paper provides a review of lighting energy saving and energy efficiency policies and practices in office buildings. The results of a face to face survey of 685 managers of companies are presented, which give insights into the factors that have influenced them to invest in lighting saving technologies. The assessment of the available lighting technologies in use in office buildings, showed that the installation of lighting saving technologies was positively influenced by a number of parameters, such as high annual financial turnover, recently established companies and companies managed by older, highly educated and energy aware people. The acceptability of the adoption and use of new efficient lighting technologies and the willingness to pay for proposed new efficient office lighting technologies, following a technico-economic information session, were also investigated. The willingness of a manager to invest in lighting energy saving/efficient technology was positively influenced by a number of factors including when a company was located in old buildings, if it was companies affected by electricity shortages, and/or if it had a large floor area. © 2012 Elsevier Ltd. All right reserved. Source


Zografakis N.,Regional Energy Agency of Crete | Sifaki E.,University of Crete | Pagalou M.,University of Crete | Nikitaki G.,University of Crete | And 2 more authors.
Renewable and Sustainable Energy Reviews | Year: 2010

The aim of this study is to analyse and to evaluate the citizens' public acceptance and willingness to pay (WTP), for Renewable Energy Sources (RES) in Crete. For this purpose a contingent valuation study was conducted, using a double bound dichotomous choice format to elicit people's WTP and factors affecting it. Residents of 1440 households all over Crete were interviewed face-to-face. Major conclusions can be used as a basis for sustainable energy planning, for policies and the formulation of awareness campaigns and for RES investment programs and projects in order to prepare implementation conditions and enhance public acceptance of renewable energy investments and programmes. Mean WTP per household was found to be 16.33€ to be paid quarterly as an additional charge on the electricity bill. Larger willingness to pay was reported by those with high family income and residence size, those having a higher level of energy information and awareness concerning climatic change, those who have invested in some energy saving measures, and those who suffer from more electricity shortages than others. © 2009 Elsevier Ltd. All rights reserved. Source


Tsagarakis K.P.,Democritus University of Thrace | Bounialetou F.,University of Crete | Gillas K.,University of Crete | Profylienou M.,University of Crete | And 2 more authors.
Renewable and Sustainable Energy Reviews | Year: 2011

This paper aims at providing useful insights into tourists' preferences for choosing to stay in hotels equipped with Energy Saving Installations (ESI) and Renewable Energy Sources (RES). Factors related to these decisions were studied through 2308 face to face interviews taken at the departure terminals of the two international airports of Crete, Greece. Results show that 86% of the respondents would prefer to stay in hotels equipped with ESI, and 87% in hotels with RES, rather than staying in hotels of identical quality which do not have either ESI or RES. Furthermore, the percentages of respondents who would be willing to pay fee surcharges for a hotel equipped with ESI or RES are 75 and 77%, respectively, as compared to hotels of identical quality which do not have either ESI or RES. Tourists from countries with high energy awareness, prove to be more willing to choose to stay at and pay for hotels with ESI and RES. © 2010 Elsevier Ltd. All rights reserved. Source


Zografakis N.,Regional Energy Agency of Crete | Gillas K.,University of Crete | Pollaki A.,University of Crete | Profylienou M.,University of Crete | And 2 more authors.
Renewable Energy | Year: 2011

This study aims to assess the state of the art of practices and technologies of energy saving and renewable energy sources in hotels. This will contribute to determining the potential of efficient and sustainable energy technologies integration. Hotel managers were interviewed face to face and information sessions were provided. Special energy and environmental awareness campaigns, sectoral tourism programs for climate change mitigation and adaptation, supportive policies and hotel energy investments and renovation programs are some recommendations elicited from the results of this study. © 2010 Elsevier Ltd. Source

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