Project gallery
Design case · Commercial PV system · Saltillo, Coahuila
A growing business needed a system sized for its future, not its past. This is the difference between installing panels and doing engineering.
01 — Starting point
Comercializadora Marsa del Norte is a commercial business in Saltillo with a track record of steady growth. Their electricity consumption data showed a clear upward trend: each billing period exceeded the last.
The industry-standard approach — average the last twelve months and size to that figure — would have produced a system that fit the business Marsa del Norte was, but not the business it is becoming. Within months, the system would have fallen short and the CFE bill would have started climbing again.
02 — The engineering decision
3,599kWh/mo
The number a spreadsheet produces. It ignores the trend and sizes for the past.
4,256kWh/mo
The number trend analysis produces. It anticipates the business's real growth.
Our engineering team analyzed the consumption curve period by period, identified the growth trend, and adjusted the sizing baseline 18% above the simple average. The result: a system that grows with the business instead of falling behind it.
03 — The system
With the adjusted baseline set, the system was sized using Saltillo's actual irradiation data and a conservative efficiency factor. No inflated numbers — we'd rather the system beat the projection than fall short of it.
| Configuration | 52 Canadian Solar panels · 620 W each |
| Total capacity | 32.24 kWp |
| Design irradiation | 5.5 peak sun hours (Saltillo average) |
| System efficiency | 80% (conservative estimate) |
| Estimated monthly generation | ≈ 4,250 kWh |
| Projected consumption coverage | ≈ 100% of the adjusted baseline |
| Modality | CFE grid interconnection · Distributed generation |
Estimated generation is calculated using the area's historical average irradiation and an 80% system efficiency factor. Actual production varies month to month with weather and operating conditions. At ProEnergy, savings projections never exceed the client's estimated real electricity spend.
04 — Why we work this way
Anyone can average twelve bills. Our work starts where the formula breaks down: consumption trends, early-stage businesses, anomalous CFE readings. Every system is sized with documented engineering judgment.
ProEnergy was founded in Baja California Sur and today also operates in Saltillo and the southeastern Coahuila region. Our portfolio includes industrial systems, commercial installations, and medium- and low-voltage electrical construction — with CFE among our direct clients.
We don't inflate ROI figures to close a deal. We'd rather give a conservative number that holds than an impressive one that doesn't. That's the difference between closing a sale and building a relationship.
Send us your CFE bill. Our engineering team analyzes your consumption curve and presents a proposal sized for your reality — no commitment required.
Start a WhatsApp conversation