SIGNO ENERGY, S.L.

Signo Energy, S.L. is a Spanish electricity retailer (comercializadora eléctrica) that positions itself around transparency and digital self-service. According to its official website, the company sells electricity at what it describes as the real market price, without hidden margins, and emphasizes a fully digital management platform that lets customers control their supply online. Its stated corporate values are total transparency, digital management, and no lock-in — customers can cancel whenever they want without penalties. The company markets several residential electricity tariffs. These include a fixed-price tariff with a single 24-hour energy price, an indexed tariff that follows the wholesale market price, and seasonal promotional offers such as a winter tariff aimed at electric heating users with consumption up to 4,000 kWh per year. The website lists a monthly management fee of €3.50 and no permanence commitment, and it presents prices both with and without taxes. The brand also displays a live grid status indicator (valley, flat, peak) on its homepage. Signo Energy operates in the Spanish retail electricity market, a segment that has seen the rise of independent digital marketers challenging the traditional large utilities. Its business model is built on online sign-up and account management, with no physical branch network mentioned. The company is registered as a Spanish limited company (S.L.), and Wikidata classifies it simply as a Spanish company. No parent company, ownership structure, founding date, or executive team is disclosed in the available evidence. Because the brand is relatively small and its public footprint is limited to its own website and basic registry data, this dossier reflects only what can be verified from those sources. Further details such as incorporation year, founders, and financials would require additional primary documentation.

Signo Energy, S.L. is a Spanish electricity retailer whose public history is documented primarily through its own commercial communications and basic corporate registry data. The company operates as a comercializadora eléctrica — a licensed electricity marketer — in the Spanish market, where independent retailers buy wholesale energy and resell it to end customers. Its brand identity is built around a reaction to perceived opacity in the traditional utility sector: the website repeatedly stresses "Energía al Precio Real" (energy at the real price), "sin comisiones ocultas" (no hidden commissions), and "sin letra pequeña" (no fine print). The company's commercial model is entirely digital. Customers are expected to sign up and manage their accounts through an online platform, with no mention of physical offices or in-person service. The website advertises a monthly management fee of €3.50 and no permanence requirement, meaning customers can leave at any time without penalty. It also displays a live grid status indicator showing valley, flat, and peak periods, a feature aimed at helping users shift consumption to cheaper hours. Signo Energy's tariff lineup has evolved around three main products: a fixed-price tariff with a single 24-hour energy price, an indexed tariff that tracks the wholesale market, and seasonal offers. One such offer, the "Tarifa Winter," is marketed for electric heating with a fixed price of €0.099/kWh for consumption up to 4,000 kWh per year. The website presents prices both with and without taxes and includes a note to consult conditions. No founding date, founder names, ownership structure, or executive team is provided in the available evidence. Wikidata lists the entity simply as a Spanish company (Q113464706). As a relatively small player in the Spanish retail energy market, Signo Energy's history is still being written, and its trajectory will depend on its ability to compete with larger, better-capitalized utilities and other digital challengers.

Transparent, at-cost electricity with no hidden fees, no lock-in, and fully digital management.

• Tarifa Fija

  Fixed-price tariff with a single 24-hour energy price of €0.118/kWh (before taxes) and a power term of €0.075/kW/day for both peak and valley periods.

• Tarifa Indexada

  Indexed tariff that follows the real market price, with a variable energy price, power term of €0.074/kW/day (peak) and €0.002/kW/day (valley), and a €3.50/month management fee.

• Tarifa Winter

  Seasonal promotional tariff for electric heating with a fixed price of €0.099/kWh for consumption up to 4,000 kWh/year, valid for a limited time.

1. 1Signo Energy official websitesignoenergy.com
2. 2SIGNO ENERGY, S.L. on Wikidatawikidata.org