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Aerial view of an industrial building roof fully covered with solar panels.

Solar Generation

On-site Generation

Who it applies to
Commercial and industrial distributed generation
Mounting
Rooftop, ground and parking (carport)
Includes
Roof structural study and the complete CFE interconnection filing
Deliverable
Technical and financial proposal with estimated monthly generation
Operation
GTO Vigía service contract from day one

Generate your own energy. But sized on measurement.

Commercial and industrial PV systems under distributed generation, designed, installed and maintained by us.

The costliest mistakeWhat sets us apart ScopeAbout the numbersQuestions

The costliest mistake

Covering 100% of your annual consumption does not mean saving 100%

A system can generate as much energy over the year as you consume and still leave your demand charge untouched. The reason is the clock: the sun delivers at midday and your peak period starts after the sun has gone.

Solar generation versus load profileTypical day · GDMTH
04008001200 kW demand peak solar generation = 0 PEAK 00:0006:0012:0018:0024:00
Plant demandSolar generation

Illustrative curves. The conclusion is not: if your tariff charges for demand and your peak is in the evening, the optimal system size is not the one that covers your annual consumption — and that difference is worth money every month.

Industrial rooftop solar.
Industrial rooftop solar
Cogeneration.
Cogeneration
On-site generation.
On-site generation
Switchgear and protection.
Switchgear and protection

What sets us apart

Plenty of people install panels. What comes before and after, almost no one does.

BEFORE

We size against measurement

Against your load profile and the real breakdown of your tariff, not against the bill total. That is where it is decided whether the system delivers the savings it promises or only part of them.

DURING

Structural study and filing

We verify that the roof can bear the load and handle the distributed generation interconnection filing from start to finish.

AFTER

Service contract from day one

A system without maintenance loses generation silently, and the owner finds out when the bill stops going down. Every system we deliver comes with a proposed service contract.

Scope

From engineering to commissioning

ENGINEERING

Design and studies

  • Consumption and load profile analysis
  • Roof structural study
  • Electrical and protection design
  • Month-by-month estimated generation
FILING

Interconnection

  • Distributed generation application and follow-up with CFE
  • Documentation and drawings
  • Follow-up through to the interconnection contract
CONSTRUCTION

Supply and installation

  • Rooftop, ground or carport structure
  • Modules, inverters, wiring and protection
  • Testing and commissioning
  • Training for plant staff

About the numbers

When someone promises you “up to 99% savings,” ask whose case that is

Real savings depend on your tariff, your hourly profile, the available area and the orientation of your roof. We give you your plant's number, with your bill in hand, and we give it to you in writing before you sign anything.

01

Month-by-month generation

Not an annual average: all twelve months, because your consumption is not flat either.

02

Effect on each component

Off-peak, mid-peak and peak energy, and what happens to your demand charge.

03

Stated degradation

Generation drops every year. If the proposal does not say so, the payback is inflated.

Questions

What clients ask before hiring us

Do the panels protect me from CFE outages?
No. A conventional PV system needs the grid reference to operate: if there is an outage, the inverter shuts down for safety. If what you need is continuity, the answer is storage, not more panels — and that is a different conversation.
Can my roof take it?
It is the first thing we check, with a structural study, not by eye. In buildings with metal sheeting more than fifteen years old, it is common to have to reinforce or replace it before mounting. We would rather say so in the proposal than on the job site.
How long does the interconnection filing take?
CFE sets the timelines, and they vary by region and by the division's workload. What we do control is that the file is complete the first time, which is where most of the weeks are lost.
What warranty does the equipment have?
Modules and inverters carry the manufacturer's warranty, with different terms for product and performance. We warrant the installation ourselves. We give it to you itemized in the proposal, not as a throwaway line.
When it is not for you

If your consumption is mainly at night, solar on its own will disappoint you. It is worth evaluating it together with storage, or not at all.

If your roof needs replacing in the next three years, do the roof first. Removing and reinstalling a system costs more than waiting.

How we work

One accountable partner, from metering to operation

We measure

Seven-day campaign with a Class A analyzer.

We design

Engineering based on your real load curve.

We build

Supply and installation inside your fence line.

We operate

GTO Vigía sustains the result after construction.

Download Brochure

Energy solutions

Download here

Interested in an on-site generation project?

In a short meeting we review your bill with you, on screen, and tell you what is worth measuring.

We work with plants on medium and high voltage. By sending you accept our privacy notice.

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Related services

Strengths

What backs every project

GTO Energy offers electrical engineering tailored to your plant. Request your diagnostic and start by knowing where the opportunity is.

01

We measure before we propose

Seven days with a Class A analyzer at your facility, before quoting.

02

One accountable partner

Engineering, supply and installation inside your fence line.

03

Diagnostic with no down payment

Fully creditable if you implement. No finding, no charge.

04

Current regulation

Compliance reports based on RES/550/2021, filed with the CNE and CENACE.

05

Operation and maintenance

GTO Vigía: monitoring, monthly reporting and priority service.

06

Third-party systems

We service plants installed by others, starting with a condition survey.