In application of Royal Decree 216/2014 of 28 March that the tariffs for customers with a contract with a reference dealer are:
Voluntary Cost for the Small Consumers (VPSC)
Market energy prices per hour.
Implementing the average consumer profile.
The cost of power may alter each hourdepending on how the electricity market evolves, meaning that it will never be the exact same in your invoice and it’s impossible to know beforehand. REE publishes the average consumer profile on its own web page.
The prices are published daily here and on the REE site.
The cost of the rates subsidy is that of the VPSC with a reduction of 25%.
Fixed Price in the Regulated Market
This is established in advance, it is fixed and stable for 12 weeks. By choosing this option, you understand the purchase price you will pay beforehand, it does not rely on the evolution of the electricity market and therefore the amounts on your bill will only depend upon your level of consumption.