This paper presents a transient model of the energy system of the small Italian island of Ventotene. The model has been developed as a tool to validate the performance related to the integration of renewable energy technologies and energy efficiency measures into the island stand-alone power system, in presence of seasonal-dependent electric load equilibrium conditions. A hydrogen-based energy system has been proposed as an effective option for the seasonal buffering of the stochastic power contribution from renewable energy sources. The time-dependent behavior of the hybrid, diesel, and hydrogen-renewable, power generation system has been investigated by matching it with the electric load data with an hourly distribution over the period of one reference year. The technical feasibility and the behavior of the systems have been evaluated in terms of its electric and environmental performance.

Issue Section:
Research Papers
Keywords:
hydrogen economy, hybrid power systems, diesel-electric power stations, renewable energy sources
Topics:
Diesel, Electric load, Hydrogen, Power systems (Machinery), Renewable energy, Simulation models, Transients (Dynamics), Stress, Renewable energy sources, Diesel generators, Energy efficiency, Solar energy
1.
EU
, 1996, “
Renewable Energy on Mediterranean Islands
,” ENEL, APAS Contract, EU Commission DGXII, July.
2.
Ambiente Italia
, 1998, “
Energy Plan of Grosseto Province (in Italian)
.”
3.
ANCIM
, 2001, “
Renewable Energies for the Italian Smaller Islands and Market Problems
,” June.
4.
Klein
,
S. A.
et al., 2000, “
TRNSYS—A Transient System Simulation Program, Version 15.1
,” Solar Energy Laboratory,
University of Wisconsin
, Madison.
5.
Ulleberg
,
O.
, and
Morner
,
S. O.
, 1997, “
TRNSYS Simulation Models for Solar-Hydrogen Systems
,”
Sol. Energy
0038-092X,
59
, pp.
271
–
279
.
Crossref
Search ADS
 
6.
Ulleberg
,
O.
, 1998, “
Stand Alone Power Systems for the Future: Optimal Design Operation and Control of Solar-Hydrogen Energy Systems
,” Ph.D. thesis, Norwegian University of Science and Technology, Trondheim.
7.
Kou
,
Q.
,
Klein
,
S. A.
, and
Beckman
,
W. A.
, 1998, “
A Method for Estimating the Long-Term Performance of Direct-Coupled PV Pumping Systems
,”
Sol. Energy
0038-092X,
64
, pp.
33
–
40
.
Crossref
Search ADS
 
8.
Abdullah
,
A. H.
,
Ghoneim
,
A. A.
, and
Ahmad
,
Y. A.
, “
Assessment of Grid-Connected Photovoltaic Systems in the Kuwaiti Climate
,”
Renewable Energy
0960-1481,
26
,
189
–
199
(2002).
Crossref
Search ADS
 
9.
ENEA
, 2000,
Atlas of the Solar Radiation in Italy
(in Italian), edited by Ente Nuove Tecnologie Energia e Ambiente, Roma.
10.
Ministry of Environment
, 2001, Island of Ventotene Integrated Program (in Italian), Ministry of Environment, November, a program for the environmental sustainability, energy efficiency and renewable energies in Italian minor islands.
11.
ENEL Distribuzione
, 2001, private communication.
12.
Ulleberg
,
O.
, and
Pryor
,
T. L.
, 2002, “
Optimisation of Integrate Renewable Energy Hydrogen Systems in Diesel Engine Mini-Grids
,”
WHEC 2002—14th World Hydrogen Energy Conference
,
Montreal
, June 9–14.
13.
Ulleberg
,
O.
, “
The Importance of Control Strategies in PV-Hydrogen Systems
,” ISES 2001 Solar World Congress, Adelaide, Australia, November 25–30.
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 by American Society of Mechanical Engineers
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