An increasingly common problem for owners of photovoltaic installations is the issue of reselling produced electricity. It would seem that the prosumer rules are simple – if we produce energy, we can resell it, and when we need it, we can buy it.
A significant number of photovoltaic devices cause the problem of overproduction of energy during the day. The consequence of this is an increase in voltage in the network and the inability to resell energy.
In the evening, when our photovoltaic installation does not produce energy, we are forced to draw it from the network. This situation causes us to significantly increase our share as a consumer and reduce our share as a producer.
The solution to this problem is an energy storage. When energy production is high, we can charge our energy storage at no cost, which we can use at night. We can of course sell the surplus energy produced, if the parameters of the power grid allow us to do so.
By having an energy storage facility, we are able to use it for our own needs and resell this energy to the grid – importantly, we can resell it at times when rates are the highest and at times when other prosumers do not produce energy.
We derive at least four major benefits from having an energy storage facility:
- storing energy with the possibility of using it when the photovoltaic installation does not produce it – reducing the costs of purchasing energy,
- the ability to resell energy at a time when rates are the highest and the grid is able to receive it,
- no financial losses resulting from the difference in selling energy at a lower rate than purchasing energy at night, when the purchase rate is higher,
- security of power supply continuity, even in the event of a network failure at night.
Of course, an energy storage facility is an additional expense, but it is worth considering buying one or building one yourself. Building an energy storage facility for people with basic electrical knowledge (or who can use the help of such people) is not a difficult task.
If you are interested in designing or consulting in the field of energy storage, please contact us: [email protected] or by phone: 505 353 885
