Gas and electricity supplier
Registration of gas and electricity suppliers
The Spanish energy market is undergoing an unprecedented transformation. Liberalization, the transition to renewable sources and digitalization have opened the door for new companies to enter a sector that was previously reserved for large corporations.
Today, any company with a solid strategy and the right requirements can become a a gas or electricity supplier. This means gaining direct access to the energy market, managing your own customer portfolio, and building a stable business model with great growth potential.
At Grupo Trebol Energía , we support companies that want to take this strategic leap. We take care of providing energy advice and the entire process of registering as energy suppliers, from the initial business plan to operational start-up, ensuring that you comply with all regulatory obligations and have a structure ready for growth.
What is an energy supplier?
An energy supplier is the company in charge of buying electricity or gas in the wholesale market and selling it to end customers (households, businesses or industries).
Unlike a distributor which takes care of the networks and physical infrastructure, it is the supplier who designs tariffs, manages contracts, handles billing and provides customer service.
👉 Bottom line:
The distributor ensures that the energy physically reaches your home or business.
It is the supplier that bills you and defines the price of the energy.
Why create a gas or electricity supplier?
Registering an energy supplier offers competitive advantages for companies seeking diversification and growth:
Direct access to the Spanish energy market.
Flexibility to design offers adapted to tailored to different customer segments.
Greater margin controlby managing procurement and costs.
Business diversificationby adding a line of business in a regulated and expanding sector.
Visibility and positioningby operating with its own brand in a strategic market.
In Grupo Trebol Energía we help define the right strategy for your company to take advantage of these opportunities without taking unnecessary risks.
General requirements for registering a Gas or Electricity supplier
Although the specific requirements depend on whether we are talking about electricity o natural gasthere are a number of common conditions:
Financial guarantees required by the CNMC.
Registration in the official registers of of regulatory agencies.
Legal constitution of the company and accreditation of its technical and economic capacity.
Implementation of billing and management systems systems that comply with regulations.
Interlocution with key organizations such as CNMC, MITECO, OMIE, REE, Enagás or CORES. such as CNMC, MITECO, OMIE, REE, Enagás or CORES.
👉 If you want to go deeper into each case, you can see:
Business plan and profitability
The first step in creating a supplier is to draw up a business plan business plan business plan that takes into account:
Start-up costs (warranties, licenses, technological systems).
Revenue structure based on expected customer volume.
Expected margin depending on the type of energy and market segment.
Profitability scenariosfrom small start-up companies with few customers to large projects with a vocation for expansion.
At Grupo Trebol Energía we help you define this plan, assess risks and build a sustainable model.
Services of Grupo Trebol Energía
Our approach is to offer a comprehensive consulting service so that the registration of your supplier is a clear and efficient process:
Regulatory and legal consultancy
CNMC, MITECO, OMIE, REE, Enagás and CORES requirements.
✅ Strategic planning
preparation of business plan and definition of the business model.
✅ Technological implementation
billing systems, switching, balance sheets and scorecards.
✅ Operations outsourcing
back office support, reporting and customer service.
✅ Financial optimization
design of the shortest route to reduce guarantees and deadlines.
✅ Continuous support
accompaniment once the supplier is up and running.
Types of suppliers you can create
There are different modalities depending on the objectives of your company:
Electricity retailer
→ access to the wholesale market, OMIE and REE.
Natural gas retailer
→ authorisation with Enagás, MIBGAS and CORES.
Modelo mixto
→ companies that choose to operate in both markets.
In Grupo Trebol Energía we adapt the requirements and strategy to each type of supplier.
👉 More information on our specific pages:
Electricity supplier registration
Natural gas supplier registration
Frequently asked questions about the registration of suppliers
What is the difference between a gas retailer and an electricity retailer?
Both buy energy on the wholesale market and sell it to end customers, but each works with different bodies (OMIE/REE for electricity and Enagás/MIBGAS for gas).
How long does the discharge process take?
How long does the registration process take? On average, between 3 and 6 months, depending on the documentation and validation by official bodies.
What is the minimum investment?
What is the minimum investment? There is no standard figure, as it depends on the financial guarantees and the technological systems in place.
Can I start in one market and expand later?
Yes. You can start as an electricity or gas retailer and, once established, expand into the other market.
What are the risks of setting up a retailer?
What are the risks involved in setting up a supplier? The main risks are the lack of liquidity to cover guarantees, regulatory non-compliance and a poorly defined commercial strategy. With good planning and support, these risks are significantly reduced.
Start today with Grupo Trebol Energía
If your company wants to take the leap and become a supplier, in Grupo Trébol Energía we put at your disposal a multidisciplinary team of legal, technical and financial experts that will accompany you throughout the process.
👉 Contact us today and start your gas and electricity supplier registration project with the security of working with specialists.