IberiaData
Energy & solar

Commercial solar in Spain: finding businesses with a roof and daytime consumption

Which Spanish businesses are ideal clients for self-consumption solar, how to identify them by activity and size, and the argument that closes the sale.

IberiaData editorial team · 19 October 2026 · 2 min read

Solar panels on a green field
Photo: Unsplash

Self-consumption solar sells better to businesses than to homes for a simple reason: businesses consume during the day, exactly when panels produce. Payback is faster and the argument is purely financial. Spain's sunshine does the rest.

The ideal client

  1. High daytime consumption: workshops, warehouses with machinery, light industry, cold storage, supermarkets.
  2. Available roof: owned, or leased with the landlord's permission.
  3. Significant bill: below a certain consumption, payback takes too long.

A car workshop with six employees and its own warehouse is almost the perfect client.

How to find them

Filter by activity and headcount (3-9 and 10-49 usually have the premises and consumption) in your province, and reveal the owner's mobile: they make investment decisions like this.

The argument that closes

Don't sell panels, sell a number: "With your consumption, a 30 kW installation would save around €X a year and pay for itself in Y years." For that you need their bills, so the first call has one goal: get the latest bill and, ideally, the hourly consumption curve.

Typical objections

  • "I don't have the money": be ready to explain financing and leasing options.
  • "I don't own the building": talk to the landlord; it can add value to the property.
  • "Others have called me": differentiate with a real study, not a generic price per kW.

Explain which permits you handle under Royal Decree 244/2019 and give realistic timelines.

Frequently asked questions

What's the ideal commercial solar client?+

A business that mostly consumes during the day, has its own (or permitted) roof and a significant electricity bill: workshops, logistics warehouses, light industry, cold storage, supermarkets.

What regulation applies?+

Self-consumption in Spain is regulated by Royal Decree 244/2019.

Written and reviewed by the IberiaData editorial team. Last updated: 19 October 2026. If you spot anything out of date, let us know.

Keep reading