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Choosing size of photovoltaic array for low feed-in tariffs

Marańda W., Piotrowicz M.

International Journal of Microelectronics and Computer Science

2014

Vol. 5, nr 3

92--97

After several decades of gradual progress, the photovoltaics (PV) is reaching the economical feasibility and various incentives for its development are being cut. The most successful incentive - the feed-in tariff for photovoltaics - is being reduced in many countries. When feed-in tariff is lower than the purchase tariff, the beneﬁts of having a PV-system are shifting from selling energy to self consumption of PV energy. In tis case, however, the proper choice of PV-arrays size is not trivial and depends also on the owner self-consumption pattern. The paper investigates the sizing of PV-system for a several types of self-consumption with feed-in tariffs lower than purchase tariffs. The calculations are performed for a full year period with recorded irradiance data. The use of optional short-term energy storage has also been investigated. The calculations have been preformed for several feed-in vs purchase tariff ratios and consumption proﬁles.

Rynek fotowoltaiczny w Polsce - szanse i zagrożenia

Kurz D.

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

2014

nr 3

18--22

W pracy przedstawiono rynek fotowoltaiczny w Polsce na tle Europy. Zestawiono ilość mocy zainstalowanej w Polsce oraz liczbę firm z obszaru PV na koniec 2012 roku. Przytoczono najnowsze uregulowania prawne dotyczące fotowoltaiki wprowadzone w tzw. małym trójpaku energetycznym oraz propozycję zmian do nowej ustawy o OZE. Skomentowano przedstawione plany i wynikające z nich szanse i zagrożenia dla inwestorów. Przedstawiono proponowane programy wsparcia i dofinansowania inwestycji.

This paper presents the photovoltaic market in Poland against the background of Europe. Number of the installed capacity and the number of companies in the field of PV at the end of 2012 is specified. The latest regulations regarding of photovoltaics introduced in the so called little energetic three-pack and the proposed changes to the new law on renewable energy was quoted. Plans and contracts arising there from opportunities and risks for investors were presented and commented. The paper presents the proposed program of supporting and financing the investment.