ENERGY SUSTAINABLE ISLAND FOR REAL LIFE COMMUNITY
ObjectivesAn integrated renewable energy network shall be built on IkariaIsland (Greece), allowing renewables to become the backbone ofpublic power supplies. The benefiting island community totals inwinter 7,500 inhabitants growing to 20,000 in summer. Powersupplies are presently covered 94% by diesels (6,050kWinstalled capacity) and 6% from wind (385kW). The project rep-resents the 1st phase of a programme aiming to turn this ratio infuture to the opposite, namely 90% from renewables and only10% from diesel. But already the present project (1st phase) isexpected to cover nearly 50% of electricity demand from renew-ables.
Mid Term ResultsThis general guidelines will be addressed by the following con-crete results:
In addition the project will result also in quiet nights for theislanders (and for tourists), since generally it will become possi-ble to stop all diesel (and the related noise) generators duringmost nights of the year, and to cover the night electricity demandonly from renewables, namely hydro- and wind-power.
The following table presents the quantifiable socio-economic ben-efits to Ikaria Island expected to be generated by the proposedproject:
In addition the project is expected to generate a series of not-quantifiable socio-economic benefits such as:• Ikaria will become an important candidate for “sustainable
tourism” (slogans like: Ikaria, the “sustainable” or “renewable”island” will be used by local tourism operators). The newlydeveloping “sustainable” tourism is willing to pay more for sus-tainability, and at the same time it is of minor impact (damage)to the ecosystems since culturally more prepared and aware ofthe problem of environment.
• The project will introduce modern up-to-date technology onIkaria Island (renewable power generation, power-electronics,inverters, batteries, automatic and remote controls etc.).
• Increased qualification level of local technicians, and improvedtraining possibilities for islanders in sectors related to the proj-ect, and the local industries / enterprises will benefit from theavailability of such qualified technicians
• The project will lay the foundations for future expansions ofrenewable energy capacities, which in turn will generate fur-ther income, employment and economic development.
Technical progress Due to finalisation of the basic design, the ongoing project is nowentering the detailed design phase. During the past phase, sup-plementary data has been collected and simulation tools havebeen improved. The results recently got that way allow for a bet-ter and more accurate dimensioning of the plant. Already the firststep has shown that it is interesting to install a number of wind tur-
bines higher than the one alreadyproposed to the Community.The total power of the wind park willbe around 2MW, the exact valuewill be defined during the detaileddesign phase.
Brief Technical DescriptionThe system consists of:• Small – Hydro Station: 3.500 kWhydro turbines will be installed inconjunction with the existing waterreservoir. Initially, it was foreseen theconstruction of one more smallerreservoir near the existing one aswell as one more at a lower level.Following site visits from an PPC –ENERIN – ORENGINE Work Group(WG), established for this purpose, itwas decided to construct two small-er reservoirs (one at 555m asl, thesecond at 75m asl) and install a1000 kW Pelton trubine in the first
one, and 2x1400 KW Pelton turbine in the second.• Wind Park: New wind turbines will be installed which will be
added to the existing ones (385kW total) which will result to atotal installed capacity of 2 – 2,5 MW.The reversal (pump storage) of the system and the return of thewater at the high level reservoirs will be secured with the instal-lation of pumps (800 kW) that will utilise energy the hours oflow demand produced by the wind turbines.
• Grid Master Control System: The different types of generatingmachines to be installed in conjunction with the existing dieseland their parallel operation, will be controlled, co-ordinatedand maximised by a “smart” system (intelligent power dis-patcher) regulating the availability of energy, frequency, volt-age regulation, fuel economy, emission reduction and noisereduction.
ENERIN PROFILEENERIN Consortium (Ansaldo Renewable Energy Consortium) hasbeen established by Ansaldo Group to meet the challenges of thenew energy sector.Nowadays, ENERIN is owned by four Italian Groups specialisingin the environmental protection and power production industries.Shareholders of the Consortium are Ansaldo Group, Sofinter, BusiGroup and Nitco.The major missions of the Consortium are:• To promote the development of renewable energy.• To optimise the integration (both commercial and technical) of
the available know–how in the renewable energy sector.• To increase, valorise and stabilise the local availability of
power sources such as: solar, wind, etc…• To draw financial means to implement the project.ENERIN has an extensive experience in the renewable energyindustry, having studied and prepared feasibility studies and proj-ects for several Municipalities, specially in the Island. To do that,it used its direct know–how, particularly referred to the betterdeployment of the different power sources.Thanks to its capabilities and experience, in February 2000ENERIN got the ISO 9002 (Company Quality System) and theISO 14001 (Company Environmental Management Systems) cer-tifications.Beside the direct technologies owned by the Shareholders of theConsortium, ENERIN has strategic agreements for different tech-nologies in the field, such as: geothermal, fuel cells, mini–hydroand bio–gas technology.
References : NNE5-530-1999
World-first demonstration of a stand-alone Sustainable EnergySystem serving a real-life island community, allowing to prove itstechnical and economic viability. Autochthonous renewable energy sources available on the island,namely water, wind and solar power shall cover nearly 50% oftotal electricity demand.Create the basic infrastructures for future solar- and wind-powerexpansions allowing to reach the most cost-effective energy-mixtotalling approximately 6 MW of wind-power allowing to cover90% of the islands electricity demand from renewablesCreation of an integrated hybrid (renewables + diesel) publicpower supply network on an island allowing for compensationbetween seasonally counter-phased renewables (hydropoweravailable during winter, solar- and wind-power in summer). High penetration rates in a power grid of stochastically behaving,i.e. not-dispatchable(*) renewables (wind- and solar power) byexploiting the energy storage capacity of the systemDevelopment and divulgation of reference standards, best prac-tices and modularity requirements favouring the replicability of thetechnology in other applications and areas of the world.Outcomes and lessons learned shall focus on the management ofthe energy storage facility serving to allow for high grid-penetra-tion of non-dispatchable RE sources, independent from the type ofenergy storage adopted, i.e. whether it be a water storage adopt-ing fresh water, brackish or sea-water, or else an electrochemicalaccumulator or any other type.
Impact of the projectThe project will have significant impact on the environment andon the socio-economical situation of the island.
The following table summarises the substantial environmentalbenefits expected to be produced by the project:
Title : Energy sustainable Island for Real LifeCommunity
Partnership : A number of partners co-operate to develop theproject, each one with its specific know-how and resources. Thepartners are: PPC (Public Power Corporation), ENERIN(Consorzio Ansaldo Energie Rinnovabili), Orengine Ltd., IstitutoTecnologico delle Canarie, Ikarian Co. for Development ofEnergy, Tourism and Water.
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