Business Electricity in Spain:
The Ultimate Guide
Everything you need to know about commercial tariffs, the 3.0TD structure, contracted power, and how to stop overpaying for your company's energy.
Analyse my business billHow business electricity works in Spain
For a typical household in Spain, electricity is relatively straightforward: you pay for what you consume (kWh) and a fixed daily fee for your maximum allowed capacity (kW), known as potencia.
For businesses, the system completely changes structure once your capacity requirements exceed 15 kW. You enter a tier of commercial tariffs designed to incentivize energy consumption during off-peak hours by segmenting the entire year, week, and day into highly specific pricing bands.
The Main Commercial Tariffs: 2.0TD vs 3.0TD
The type of tariff your business is on determines entirely how you are billed:
The 2.0TD Tariff
For small businesses, offices, and cafés.
- • Maximum power: Under 15 kW
- • 3 Energy periods (Peak, Flat, Off-Peak)
- • 2 Potencia periods (Day, Night/Weekend)
- • Very similar to residential billing.
The 3.0TD Tariff
For restaurants, hotels, workshops, factories.
- • Maximum power: Over 15 kW
- • 6 Energy periods (P1 to P6)
- • 6 Potencia periods (P1 to P6)
- • Mandatory reactive energy penalties apply.
Want a deep dive on how the 6 periods of the 3.0TD tariff work?
Read our 3.0TD Tariff Guide →Understanding Contracted Power (Potencia)
For a business on a 3.0TD tariff, Potencia is often the largest portion of the monthly bill. You must contract a specific amount of power for each of the 6 periods. The rule dictated by Spanish law is that the power contracted in a cheaper period (like P6) must be equal to or greater than the period before it.
Maximeter Penalities: Unlike homes, where the electricity simply trips and turns off if you exceed your limit, commercial meters use a maximeter. This records your peak usage. If you exceed your contracted power in any period, you are hit with severe financial penalties on that month's bill—sometimes wiping out hundreds of euros.
Optimization Tip: Up to 70% of businesses in Spain analyzed by our experts are overpaying on potencia because they are contracting power for periods (like P1 or P2) where their business is closed or barely operational.
Typical Costs by Sector
How much does electricity cost for a business in Spain? It depends heavily on the industry.
- Restaurants & Bars: Usually on 3.0TD due to heavy kitchen equipment and A/C. Nighttime operations benefit slightly from cheaper P4/P5 blocks, but peak dining hours often align with expensive energy periods. View average restaurant costs.
- Hospitality Sector: Bars, cafes, and small hotels have unique energy profiles that require specific optimization. Electricity costs for hospitality Spain.
- Offices: Usually on 2.0TD. Consumption is perfectly aligned with the most expensive P1 and P2 peak daylight hours, making solar a fantastic investment.
To see the current market average unit rates, check our live Business Price per kWh index.
Everything you need to optimize business energy
Built specifically for SMEs, restaurants, hotels, and offices in Spain.
Electricity Costs for Bars in Spain
Bars combine long opening hours, constant refrigeration, and sharp service-time spikes. That makes them one of the easiest hospitality business types to overcharge on electricity.
Read the guideAverage Electricity Costs for Restaurants in Spain
Energy is one of the top three operational expenses for hospitality businesses in Spain. Discover what a normal bill looks like and how to slice hundreds of euros off your fixed monthly overheads.
Read the guideBest Electricity Tariffs for Restaurants and Bars in Spain
For hospitality businesses, the best electricity tariff is rarely just the cheapest advertised kWh price. The right setup depends on opening hours, kitchen peaks, refrigeration, contracted power, and penalty risk.
Read the guideElectricity Costs for Hotels in Spain
Hotels carry high fixed energy demand all day and all night. HVAC, hot water, laundry, pools, kitchens, and guest comfort systems make hotel electricity one of the most sensitive cost centres in hospitality.
Read the guideAverage Business Electricity Price per kWh in Spain
Unlike household tariffs, business electricity prices in Spain vary significantly based on consumption volume, contracted power (potencia), and the specific energy periods utilized.
Read the guide2.0TD vs 3.0TD for Businesses in Spain
The most important business electricity question in Spain is often not the supplier first. It is whether the business should be on 2.0TD or has already moved into 3.0TD territory.
Read the guideContracted Power for Businesses in Spain
For many companies in Spain, the biggest electricity problem is not the energy rate. It is paying for the wrong amount of contracted power month after month.
Read the guideHow to read your business bill
A standard Spanish business electricity bill is notoriously complex. It involves:
- Terms for active energy consumed across 6 periods.
- Terms for power contracted across 6 periods.
- Penalties for excess potencia (excess power).
- Penalties for reactive energy (energia reactiva) caused by motors, freezers, and heavy machinery.
- Regulated taxes (Impuesto Eléctrico) and IVA (VAT).
How to Read a Spanish Business Electricity Bill
Business energy bills in Spain (especially the 3.0TD tariff) are notoriously difficult to decipher. Here is a line-by-line breakdown of exactly what you are paying for, and how to spot hidden penalties.
Read the guideMaximeter Penalties in Spain Explained
A business does not always trip the power when it goes above its limit. On many commercial tariffs, the meter records the peak and turns it into a penalty instead.
Read the guideReactive Energy Charges in Spain Explained
Reactive energy is one of the easiest lines on a business bill to ignore and one of the most frustrating once it starts adding recurring cost.
Read the guideAre you overpaying for unused power?
Optimizing the 6 periods of a 3.0TD tariff is nearly impossible manually. Upload your bill and our experts will calculate if lowering your P1-P6 potencia will save you money, factoring in any potential maximeter penalties.
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