Even split in wind, solar systems optimal balance, studies show

An even split between prospective solar and wind energy installations in Greece is the perfect balance in terms of cost-effectiveness and investment, studies conducted by two Greek universities have shown.

Emphasis on the development of either of the two RES technologies is not optimal for RES growth in Greece, Panagiotis Papastamatiou, chief executive of ELETAEN, the Greek Wind Energy Association, told the recent Power & Gas Forum in Athens, citing the university studies.

Although solar energy installations are lower in cost, they require large storage capacities for energy transmission, coming at an increased cost, the ELETAEN official noted, adding that, on the other hand, investment costs for wind energy installations, especially offshore systems, are elevated.

This view raises questions about the National Energy and Climate (NECP) plan, envisaging greater development of solar energy installations, and whether this approach would maximize benefits for consumers, compared to a 50-50 split.

A study conducted by the National Technical University of Athens (NTUA) showed that a combination of 10 GW in solar energy systems and 10.5 GW in wind energy systems would reduce overall generation cost.

Another study, by the University of Piraeus, also showed that a 50 to 60 percent wind-energy share of prospective RES installations is the optimal combination that should be pursued.