Need help? Consult the most frequently asked questions

Whenever we can, we always bill based on actual measurements, if the bill appears as an estimate it is because the distributor, who is legally responsible for reading the meter, has not given us the readings. This information is constantly being regularized with the information we receive from the distributor in subsequent invoices.

It is a reading obtained based on the best information available on the billing date. If information has not yet arrived from the distribution company, we make the calculation based on the consumption data provided by the customer when signing the contract, according to historical data from the same supply point or other projections based on the best information available at any given time.

Normally, the reading from the distribution company does not arrive at the end of the month, but in the middle of the month, which allows the value to be extrapolated in order to be able to invoice the remaining days of the month. This information is constantly being regularized with the information we receive from the distributor in subsequent invoices.

By law, the distributor is responsible for collecting the readings. You can find information about your readings in your Customer Zone on our website.

The price shown on the invoice is equivalent to the contract price divided by 365 days of the year and expressed in cents of €/kW per day and in the contract is shown in €/kW per year.

When you have a new invoice available, we will notify you by e-mail, informing you of the amount and including the link to access your Customer Zone where you can view your complete invoice.

In your Customer Zone you can find all the detailed information about your invoices. You can access using the username and password provided in the welcome email. In case you do not remember it, you can update it at any time on our website.

It is not usual, but if it happens to you it may be due to the mail service or an error in the e-mail. If this happens, you can contact us by calling 900 81 85 85 33.

It is an energy that some equipment generates with its operation, but that is not useful for its operation and harms the electrical system so the system regulator sets a penalty cost. If this reactive energy is high, it will represent an extra cost in the bill. To eliminate this cost overrun the solution is to install a capacitor bank equipment. If you have had more than X months with a reactive cost overcharge, you may be interested in contracting a capacitor bank to correct it. If this is your case, you can call us at 900 81 85 85 33 and we will inform you.

We are your energy partner for greater energy savings. Our team of energy experts offers you a customized energy purchasing strategy ranging from market-indexed solutions to other options to minimize risk and improve profitability.

In addition, we help you to adjust your contracted power to obtain maximum savings and we offer you tariffs at competitive prices and without permanence.

With us you can consume 100% green energy. If you join us, we will move forward together on the path of energy transition to achieve a more sustainable future.

We have more than 20 years of experience in the sector and a deep knowledge of the electricity market.

Registration with Nexus Energía is free of charge. It may entail some cost for action by the distributor. In this case, the distributor usually invoices Nexus Energía directly and we pass it on to you without adding any margin.

Switching companies is very quick and easy! We calculate your Nexus Energía quota with your CUPS number. You can register on our website to start the contracting process, or you can call our customer service number 900 81 85 85 33, and a sales manager will contact you.

You do not have to process anything. Just fill in the contracting form. Once you have contracted our service you will have access to your Client Area. There you will be able to consult online or download all your invoices, your consumption data and your contracts. The data can be filtered by a supply point or several to be able to see the evolution of the consumption and the invoicing of each one or as a whole. In addition, you can extract documents in various formats to compare and analyze the evolution of the energy consumed and the payments made.

None, you can terminate your contract with Nexus Energía whenever you want without any penalty.

Under no circumstances. The supply is guaranteed by law, and the electricity distribution network is the same for all commercialization companies, any incidence in the supply cannot be discriminated between customers of different commercialization companies. The liberalization of the electricity market has separated the distribution and commercialization activities so that this does not happen.

The prices that you signed with us are subject to review by the administration on a quarterly basis. The administration regulates the tolls and charges and other regulated concepts, and in the event that they suffer a variation, these are regularized in the prices that appear on your bill.

Tolls and charges are regulated costs that are reflected in detail in the electricity bill.

On the one hand, tolls reflect the costs associated with the operation of the sector (distribution and transmission) and charges, on the other hand, reflect the costs associated with energy policy (financing of renewables, financing of the tariff deficit and 50% of the additional cost of island generation).

Tolls and charges are applied on power (fixed component) and energy (variable component). That is, we have energy and power tolls and energy and power charges.

The new rates applied as of June 1, 2021 based on the circular 3/2020 rate change, which are detailed on your bill, are as follows:

- If you have a contracted power of less than 15 kW in Low Voltage, you are entitled to a 2.0TD tariff.

- If you have a contracted power of more than 15 kW in Low Voltage, you are entitled to a 3.0TD tariff.

- If before June 1 you had a High Voltage tariff, 3.1A or 6.1A, you will be charged a 6.1TD tariff.

- If you had a 6.2A High Voltage tariff before June 1, you are now on a 6.2TD tariff.

- If you had a 6.3A High Voltage tariff before June 1, you are now on a 6.3TD tariff.

- If you had a 6.4A or 6.5A High Voltage tariff before June 1, you will be on a 6.4TD tariff.

From June 1st you can make two power modifications in the following 12 months (regardless of when the last power change was made). These two changes will allow you to adapt the powers of each period according to your needs. The only rule you must keep is that the power must always follow an increasing order per period (the power of each period must be equal or higher than the previous period), except for the 2.0TD.

In the case of 3.0TD tariffs, there must always be at least one of the powers above 15 kW. In the case of the 6.XTD tariffs, it is no longer mandatory that at least one of the power ratings be greater than 450kW.

We will take care of it for you. You can request it by e-mail and we will send you a form to fill in, where you indicate the current power and the new power you want to request.

If you have a 2.0TD tariff, the cheapest energy is the one corresponding to the P3 period. This period is assigned to the night hours from 0 to 8 on weekdays and 24 hours on holidays and weekends.

If you have a 3.0TD or 6.1 TD tariff, the cheapest energy corresponds to the P6 period. This period is assigned to the night hours from 0 to 8 on weekdays and 24 hours on holidays and weekends.

As of today, we do not have a joint electricity and gas offer. If you are an SME or company, we can offer you both electricity and gas supply. If you would like a personalized offer, just call our customer service number 900 81 85 85 33 and a sales manager will contact you.

If the meter is the Distributor company is the one who invoices Nexus Energy, and we pass it directly and without charging any extra cost to your company.

Incidents in the network such as outages, voltage variations, etc. are managed with the distribution company through Nexus Energía, by calling the customer service telephone 900 81 85 33 and a sales manager will contact you.

The CUPS (Unified Supply Point Code) is like the DNI of the electricity meter. To check the CUPS, the easiest way is in the customer data of your electricity bill, but you can also find it in the meter. This is an important piece of information, as it identifies your exact point of supply.

The trading companies are the ones that buy electricity from the distributors, and the ones that invoice the end consumer. Since the liberalization of the energy market in Spain in 1998, the two figures that can operate in the electricity market are the distributors and the electricity trading companies.

You are free to choose the electricity and gas supplier with whom you want to sign a contract.

Nexus Energía was born in 2000 when a dozen distributors from all over Spain joined together to create an electricity trading company that was committed to teaching its customers how it is possible to achieve a more efficient use of energy and to promote the development of renewable energies.

There are two markets: the regulated market and the free market. The free electricity market is an energy market in which each consumer can choose his electricity supplier, i.e., his trader. This market was born thanks to the liberalization of the Spanish electricity market in 1998.

The free market suppliers offer all kinds of offers, both market-indexed prices, according to the hourly price of the Iberian Market Operator OMIE, and fixed prices, a single price per kWh, usually for an annual period.

Regulated retailers, which are those authorized by the Ministry of Industry, Energy and Tourism, apply the regulated tariff PVPC (Voluntary Price for the Small Consumer). The PVPC tariff has a price that changes hour by hour and day by day according to the supply-demand between those who produce energy (the generating company) and those who sell it to the consumer (the retailer).

Therefore, the daily evolution of the market and the oscillation of prices most directly affects consumers who are in the regulated market.

Green or renewable energy is defined as energy generated by renewable energy sources, i.e., energy that uses natural resources that are considered to be unlimited.

1. Solar energy, which uses the sun as a resource
2. Wind energy, which uses wind as a resource
3. Hydropower, which uses river water as a resource
4. Biomass, which uses crop or forestry waste
5. Energy obtained from organic waste (slurry, sludge, MSW)

In contrast to other forms of conventional generation such as thermal or nuclear power, these technologies do not pollute the environment, as they do not contribute to the emission of greenhouse gases, nor do they generate radioactive waste.

The energy consumed by companies comes from electricity generating companies in different types of generation plants: photovoltaic, thermal, nuclear, hydroelectric, etc.

Nexus Energía is an accredited 100% green energy supplier. The convention in the European Union grants the qualification of certification with guarantee of origin to that energy supplied that comes from renewable energy production plants. This is the procedure to ensure that companies support, if you consider it appropriate, the companies that we can give you such guarantees of origin.

Currently, there is no other way to support renewables as consumers. Obviously, we cannot guarantee that the electrons your company consumes come from a specific plant, but you can be sure that we have fed as many "renewable electrons" into the grid as you consume as Nexus Energía customers.

There are different actors in charge of different activities in the electricity sector:

- Energy producers (free market): companies that generate energy, which can be renewable (wind, hydro, solar...) or non-renewable (nuclear energy, coal....).

- Energy transmission (regulated market): in Spain, energy transmission is managed by Red Eléctrica de España (REE), which owns all the infrastructures that enable the transmission of electricity at very high voltage and over long distances, from the production plants to the substations.

- Energy distributors (regulated market): In Spain, energy distribution is regulated. Distributors are the companies responsible for transporting energy from the networks to the transformer stations and to the end customers, maintaining the distribution facilities and guaranteeing the quality of supply. They are also in charge of measuring the supply points.

- Energy traders (free market): this is where we are. We are the intermediaries between the end customer and the rest of the market agents. As marketers, we buy energy from the Spanish Iberian Market Operator and sell it to end consumers. In Nexus Energía, we advise you with an energy purchase strategy and we offer you customized tariffs adapted to your real needs so that you can improve your energy efficiency and your profitability.

- Operator of the Spanish Iberian Market (OMIE): it is in charge of managing the daily and intraday markets, where producers sell their energy and marketers buy it. Market prices are public for everyone.