Website: www.trigemed.com
Summary
The project "Promotion of tri-generation technologies in the tertiary sector in Mediterranean countries (Greece, Italy, Spain, Portugal)", or TriGeMed, that is supported by the SAVE Programme of the European Commission, aims to promote the uptake of trigeneration (CHCP) by the tertiary sector in the EU member states allocated around the Mediterranean Basin, i.e. Greece, Italy, Spain and Portugal. In addition, the propulsion of this promising technology is assisted via the dissemination of information on it in the wider geographical area of Mediterranean, e.g. Cyprus, Malta, Morocco, Tunisia, etc.
The project achieved its objectives through the carrying out of a survey on the development status and prospects for CHCP applications in the tertiary sector of the 4 Mediterranean countries aim of the study, followed by the implementation of a wide dissemination strategy for the promotion of the generated results and that included the production of several information tools documenting the consolidated survey data, the launching of a web-site and the circulation of e-bulletins, press promotion, organisation of a series of national workshops to announce the project results, etc. A significant potential for the development of CHCP plants in the tertiary sector of the 4 countries was identified; only for the sub-sectors that were analysed the maximum market potential is about 1100 MWe. However, for the effective exploitation of this potential is essential that a number of key obstacles are removed through the adoption of effective and well targeted penetration strategies.
Results
In spite of the recognized advantages and significant existing market potential for the implementation of CHCP in the tertiary sector of the 4 analysed countries, there are some barriers to the higher penetration of this technology in that sector in all those countries, being these obstacles of different nature - economic, technical and other (legal, administrative, political/institutional, organisational, etc.) and not quite the same in all countries. The importance of these different obstacles in each country reflect the development level of trigeneration in the sector that is different in the 4 countries - Spain with 23 CHCP plants (48 MW of installed electrical capacity) and Italy with 11 plants (but representing 123 MW of installed electrical capacity) are the ones that are far most advanced in this field, followed by Portugal that has 10 CHCP plants, equivalent to 28 MWe of installed capacity. Greece is giving the first steps in what concerns to CHCP implementation in the tertiary sector, since before 1994 these installations were not allowed by Greek law and natural gas is available in the big cities from 2002, which implies that for the moment there are only 3 CHCP units, representing a total installed electrical capacity of approx. 2 MW.
Because of this, the strategies for removal of those barriers must be, in a general way, different from one country to other, according to the specificities/barriers of each country. Even so, based on the conclusions for the individual strategies in each country, it is evident there are several common measures which appear to be applicable in most countries of the region. Accordingly, it is apparent that the prompt adoption of those measures will significantly facilitate the increase of CHCP share in the tertiary sector of the Mediterranean countries and constitute an efficient tool to achieve energy savings and reduction of CO2 emissions. It can be stated that for those common measures are of high priority and relate mostly with tackling economic and organisational barriers (e.g. review of electricity and gas tariffs, financial support - promotion of innovative financing schemes, improvement of administrative/licensing procedures, and, needs of awareness raising and dissemination campaigns about the CHCP technology), as well as defining clear strategic goals (e.g. primary energy savings and/or CO2 emissions savings).
The results of the pilot actions showed attractive financial viability for most cases, with payback times in the magnitude of 4-5 years. For the 9 pre-feasibility studies carried out (3 hospitals, 1 airport, 3 hotels, 2 commercial buildings), it was concluded that the investments correspondent to the implementation of CHCP plants in the considered buildings, estimated in a total of 12,695 kEuro, could conduct to 16,438 tons of CO2 emissions savings per year.
Concerning the primary energy and emissions savings associated to the estimated technical potential for the whole 4 countries, arising from the implementation of trigeneration, are respectively:
These results clearly demonstrate the no negligible benefits that the CHCP technology may represent for all countries of the South Basin of Mediterranean. The achievement of the objectives of the TriGeMed project was a reality, not only by the results of the survey, but also by the dissemination that followed, with a participation of almost two hundred people in the 4 workshops carried out and the wide circulation of e-bulletins by the foreseen channels, addressed to the selected target groups and key actors, that in most cases reacted as being interested to know more about this promising technology.
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