Especialistas em sistemas solares Energias renováveis Com foco em sistemas isolados

Solarmoz as a renewable energy company, proposes a new technology of solar panels with hybrid inverter and accumulation batteries, in order to make the customers' homes self-sustainable, that is, green, and above all with a very reduced light bill in intermediate climate and practically null in good weather (example of summer in Alentejo, long days and sun all day).

There seems to be a great disagreement in the population about solar panels, typically they work to continuously produce their maximum and to inject into the public network. If the customer has a device connected at the same time, that same device uses solar energy and, if necessary, the rest of the network to supply the connected device. If there is nothing connected at home, the light produced goes to the network and someone uses it, not the owner. Everything works like looking at the water analogy in the plumbing. Just the moment you need to spend energy to pass a cloud and no longer enjoy.

The solar system in self-consumption, only contains the inverter and solar panels, this is much cheaper, but the return is reduced compared to the hybrid. The excess energy is injected into the public electricity network without any type of accumulation. In many cases, the amount injected into the network is higher than what the customer takes advantage of, as it does not connect devices at the key time. Self-consumption only works with a connected public power grid.

Solarmoz, after having already tested and approved the equipment in question, invests in an all-in-one inverter, which is always charging the batteries when there is sunlight, and the customer always uses the energy for his home directly from the batteries, that is, it is an accumulator. Going back to the water analogy, it's like having a deposit waiting to be spent. During the night, the customer wears out the batteries until they run out and at that moment the inverter automatically changes the consumption back to the public network. The inverter and grid power never cross, hence it is called an isolated system (or is connected to the grid or batteries).

We do not advise, as like any electronic device, it can break down, and having the public power grid connected is always good. For example on that day when you bring your family home and need to use more energy than usual.
Typically on a day-to-day basis, in the best possible scenario, you only pay the meter and the associated taxes on the electricity bill (mainly summer).

This technology has been around for a long time, but there was a big revolution in batteries that are the weakest and most expensive element, now there is lithium, which after starting to appear on the market (lithium-phosphorus, called LIPO), similar to batteries developed in electric cars, with manufacturers giving 10-year guarantees, it makes sense to have homes and businesses with non-industrial consumption. In the past there were also batteries of conventional materials, which despite being cheaper, in the majority they last much less time and have other less attractive characteristics, which only leads the industries to have, as is the case of UPS and remote stations where it is not mandatory the light goes out. As well as batteries, solar panels and inverters, they are also continually lowering prices and increasing their capacity, which makes it increasingly accessible to everyone.

Each case is a case, but typically, someone who invests wants maximum savings, however, there are more corporate cases in which the objective is the opposite, to have a backup system or UPS, in case the public network fails, in that case the batteries start to work, as is the example of someone who has food products in freezers.

Mostly, it is an investment to lower light consumption. Even if on day X, you no longer have batteries, if the public network fails, the system goes back to them, which because they don't have a lot of charge and don't last long, at least keeps the basic things working, like lights, fridge and television. An advantage also for those who live in areas with constant micro cuts, this equipment solves the problem, in addition to the voltage generated being constant 230vac.

In the hybrid system the switching works as programmed, each case is different, but typically batteries + panels are used for maximum savings, the inverter automatically switches to the grid in the following cases:

There is no sunlight and the batteries have been exhausted.
The maximum power of the inverter is exceeded.

As soon as these conditions are redone, the inverter automatically switches over to the batteries.

O retorno do investimento no autoconsumo é reduzido, mas o preço de instalação também o é, sendo difícil estimar com maior certeza, tendo que ser individualizado em cada situação.
No caso do sistema isolado, o investimento é maior, mas a redução da fatura da luz em grande parte do ano é quase total, claro que cada caso é um caso, vamos ter em consideração uma vivenda com média de 200€ de luz por mês. Falando em números, nessa moradia, espera-se haver um retorno do investimento entre 3 a 6 anos conforme o sistema implementado, neste caso de um sistema com inversor híbrido e baterias (esperando que no verão exista excesso de produção e baixo consumo; no inverno menos produção e um consumo aumentado).
Nada melhor do que entrar em contacto connosco e fazermos um planeamento/orçamento sem qualquer compromisso.

In these cases, the only option you have is an isolated system without recourse to the power grid, with batteries.