If there is not much sun on our balcony and therefore photovoltaics are not very convenient, perhaps we can take advantage of the wind and install a mini turbine. But do you know how much the mini balcony wind turbine costs? Is it really worth it?
@ oksanakuznetsova / 123rf
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Like balcony photovoltaics, the mini balcony wind turbine is not a very economical solution at first and, similarly to its “solar counterpart”, it cannot alone meet the energy needs of a housing unit. But it can help, at least under certain conditions.
Taking a tour on the net you realize that the costs are not exactly contained, especially if you aim for the horizontal system for the roof, over generally more wind circulates. The horizontal wind turbinesthe classics, in fact, cost between 1,000 and 2,000 euros for a production between 1 and 3 kW, to which it is necessary to add the costs for the installation itself (as well as the ordinary and extraordinary maintenance) and for any battery for storage.
The choice of the most convenient solution also depends on the type of home, whether autonomous or in a condominium. In this second case, in fact, you hardly have much space outside, so you might prefer a vertical axis plantthe costs of which are much lower, too 200 eurobut the expected production is also lower, around 0.5 kW (peak).
Other variables must be taken into consideration by relying on experts, including spaces and stability of the external space. A useful web resource to understand if our area guarantees a decent windiness, from which to derive the electricity that can be produced, is theWind Atlas of Italywhere the average wind speeds can be displayed in color on an interactive geographical map.
However, a small domestic wind power plant is a deductible expense that depends on the energy produced, therefore on theself-consumption that we are guaranteeing. So it is really important, even under this level, to have a system that can guarantee the highest possible efficiency. Taking into account, however, that the savings that we are giving ourselves is far greater if we think about the future of the planet.
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