A hybrid power plant towards 100% energy autonomy for the island of Sifnos, Greece. Perspectives created from energy cooperatives
2018
Katsaprakakis, Dimitris Al. | Voumvoulakis, Manolis
The article presents the technical - economic details of a hybrid power plant, towards 100% electricity production for the autonomous island of Sifnos, Greece, following the initiative of the Sifnos Island Cooperative (SIC) to claim the island's energy independence and a sustainable future for the local community.In the case of Sifnos, energy independency is achievable given the high wind potential and the availability of an appropriate site for the installation of a seawater Pumped Hydro Storage system. Despite the low power demand (annual peak demand 6.5 MW), pumped storage remains the optimum energy storage technology, with a set-up specific cost of 30 €/kWh of storage capacity. The project's economic feasibility is ensured with a selling electricity total price of 0.29 €/kWh, given the production specific cost (0.34 €/kWh) of the existing thermal power plant.The hybrid power plant anticipates to constitute the kernel of the SIC objectives for a general social and economic development for the local community. This can be approached with the re-investment of the project's profits for the development of essential technical infrastructure and the exploitation of the electricity production surplus, combined with energy saving or smart-grid techniques, to foster new professional activities.
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