The National Technical University of Athens’ professor Stavros Papathanasiou, also head of the energy ministry’s committee for energy storage, has proposed, in an interview with energypress, a rational and careful approach to Greece’s storage needs.

A RES energy-mix share of 80 percent by 2030 will require more pumped-storage projects, while decisions on the prospective installation of 900 to 1,000 MW in energy storage systems – a capacity to soon become available through auction procedures – can be left for later on, when price levels for this technology will have fallen significantly, the NTUA professor noted.

The professor also offered a detailed analysis on how storage investments should be remunerated when they provide congestion relief services to the system.

He also stressed the role of storage stations in combination with RES stations (behind the meter) is absolutely crucial, adding that investors behind existing photovoltaic and wind energy facilities should be given incentives to install batteries as a part of their investments.

The professor also noted it is necessary to reform the existing net metering system so that production and consumption of energy could be synchronized instead of having energy injected into the grid at times of congestion.