Meeting with representatives of Lithuanian Solar Energy Association in Vilnius

The main focus of the discussion was related to the technical and legislative possibilities to install Plug-In PV and Second Hand PV systems in Lithuania. The Plug-in systems require Smart grid and Smart metering solutions, as well as in some cases the possibilities for consumers to accumulate generated energy, for example for the production of hot water. However, this is also problematic during summer/winter periods.

Installation of Plug-In PV on balconies is currently just starting. However, it may cause legal problems, as architects are not providing permission for alterations to the exterior of a building. There can be also technical problems, as consumers usually don’t know if their meters are unidirectional or bidirectional. The Plug&Play system here would be the most appropriate. However, a system with storage batteries could be more expensive for consumers.

Regarding Second Hand PV, the first PVs were installed in the year 2011, which is about 12 years ago, and the time span of such panels is 25 years. It is expected that after 20 years of age 90% residual efficiency will remain, thus situation looks very optimistic.

The second focus was dedicated to the new technological solutions, which are currently developed and innovative in the EU and Lithuania. Such solutions as hybrid panels with cooling, which can be used for efficient electricity generation and tap water heating. Specific PV can be used for pedestrian and cycling paths, walls of buildings, walls of buildings, also for PV plants on water surfaces in hydropower plants and closed careers (artificial lakes which are naturally left over after mining gravel or sand beds), which are interesting and have promising future.

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