How to Choose the Best Surplus Compensation Rate

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Surely, you are aware that in Spain, for the past few years, the sale or compensation for the energy produced by solar panels that is not consumed by their owners has been allowed.

To qualify for this compensation or sale, it is essential that the residence has access to the electrical distribution network, and the following requirements must also be met:

  1. The property cannot exceed 100 kW of contracted power.
  2. The supply must have a bidirectional meter to account for both the energy consumed from the grid and the energy fed back into it.
  3. The owner of the solar panels cannot profit financially from this action.

Now, the compensation cost that the user will receive depends on what is agreed upon with their electricity supplier in the contract. Therefore, below are some tips for you to maximize the savings provided by surplus photovoltaic compensation.

What to Consider When Choosing a Solar Power Rate

If you are considering installing solar panels in your home, or if you have just completed the installation and wish to opt for the surplus self-consumption option, we recommend that you start by comparing the different rates available on the market.

The choice of one rate over another should depend on the household’s consumption needs and the capacity to generate surplus energy from the photovoltaic system. This means that it is a completely personalized process, and we should not be influenced by other situations; what works well for one supply might not be the most beneficial for another.

In this regard, seeking advice from energy experts, such as Selectra, will make it easier to choose a solar rate, taking into account the following aspects of the contract:

  1. The price of electricity per kilowatt-hour (€/kWh) consumed
  2. The price of excess photovoltaic energy fed into the grid (€/kWh)
  3. The cost of contracted electrical power (€/kW)
  4. The duration of discounts and their profitability, to prevent the price from disproportionately increasing when the promotion ends
  5. What additional maintenance services cover and whether it is worthwhile to contract them
  6. The lighting usage schedules of the building’s occupants and the hours of sunlight in the province.

Is it worth it to hire a virtual battery?

More and more electricity providers understand the importance of embracing more sustainable solutions and offer virtual battery options for self-consumption in their services.

Therefore, when choosing a surplus compensation tariff, it’s also necessary to consider the possibility of including this service or not.

It becomes especially interesting if the solar panels generate too many photovoltaic surpluses because it allows you to accumulate the surplus balance that is generated but cannot be compensated within a billing period, enabling you to use it in the following months or even in another supply.

In this way, the owner of solar panels can potentially receive zero-cost bills for a lifetime in all the properties under their ownership.

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