Distributed cogeneration can have a very meaningful strategic energy conservation outcome for islands

Fielden, Derrick; Jacques, J.K.

doi:10.1002/(sici)1099-114x(199708)21:10<885::aid-er291>3.0.co;2-g

Cited by 1 publication

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to perform a more intuitive viability analysis for the "CHP retrofit + DH network installation" scenarios identified as most promising solutions, for each island the following synthetic economic indicators were derived: -The Net Present Value (NPV), defined as shown in Eq. (10): (10) In. Eq.…”

Section: Synthetic Economic Indicatorsmentioning

confidence: 99%

“…This result, that has been verified by an extensive survey at European Union (EU) level examining a significant number of small islands out of the 286 located within the EU territory [9], is due to a number of factors, such as: (i) the relative ease with which fuel can be purchased and supplied (compared to less attractive alternatives, such as natural gas to be transported either by pipelines or liquefied by tankers), (ii) the flexibility of engines (especially when designed by a modular approach) in meeting daily and seasonal variations in energy demand. In spite of the high share of installed power generation capacity by diesel oil-fuelled Internal Combustion Engines (ICEs) and of the highly strategic outcomes that could be achieved for small islands [10], the penetration of Combined Heat and Power (CHP) in small islands is very low. This is mainly due to the following factors:…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessing the feasibility of cogeneration retrofit and district heating/cooling networks in small Italian islands

Beccali

Ciulla

Pietra

et al. 2017

Energy

View full text Add to dashboard Cite

Sustainability of energy supply strategies in small islands has been emerging as a severe issue, due to the large margins for improvement and rationalization of the most frequently adopted solutions. In most of the European islands, large amounts of heat are wasted by the operation of engine-based power plants; conversely, heat is produced by boilers (supplied by liquid fuels) or by electric equipment for a number of different uses, like domestic hot water production or space heating in winter. In this paper a techno-economic analysis is proposed to assess the feasibility of CHP-retrofit of the existing power plants and the possible utilization of the recovered heat to supply, via a district heating and/or cooling network, the energy requests of civil energy users (both in the tertiary and in the residential sector). The analysis is accurately performed for six islands located in Italy and characterised by different context conditions from a demographic, geographic and climatic viewpoint, so as to get a comprehensive understanding of the factors that favour/obstruct the economic feasibility of the examined technical solution. As expected, due to the low "linear heat density" usually observed in small islands and to the complex orographic profiles, the investment usually resulted "far from being attractive"; only in the case where public incentive or support mechanism is adopted, the possible integration of the existing power plants with heat recovery devices and a district heating network resulted in moderately attractive, especially in the largest examined islands due to their highest heat loads.

show abstract

Section: Synthetic Economic Indicatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%