Clear answer, explained.
O&M contracts for commercial rooftop solar in Canada are structured around two components: preventive maintenance (the scheduled, predictable activities) and corrective maintenance (response to faults and unexpected failures). Standard O&M contracts cover the preventive component — annual inspections, monitoring, inverter servicing, and thermographic surveys — and define how corrective maintenance is handled.
The most important distinction between O&M contracts is whether component repair and replacement are included in the annual fee or billed separately. Most standard O&M contracts include labour for scheduled inspections and monitoring response, but charge separately for hardware (inverters, modules, racking components) and emergency repair labour beyond the scheduled scope. Some contracts include parts up to a specified dollar value annually. Clarifying this distinction before signing ensures no surprises when a significant repair is needed.
In Canada, where seasonal weather events can affect system performance, inspection timing is typically scheduled for spring (post-winter) to assess freeze-thaw impact on racking and wiring, and fall (pre-winter) to confirm the system is in good condition for the lower-production months. O&M contracts should also specify monitoring platform access, alert response time commitments, and the process for escalating manufacturer warranty claims.
What this means in practice.
- Annual inspections: physical, electrical, and inverter review
- 24/7 monitoring with automated fault alerts and response
- Thermographic survey on defined frequency (typically every 2–3 years)
- Cleaning recommendations based on site conditions and tilt
- Warranty management and manufacturer claim coordination
- Emergency response: confirm whether included in annual fee or billed separately
Best-fit environments.
- All commercial and industrial solar installations seeking ongoing performance assurance
- Systems recently acquired as part of a property transaction
- Facilities where the original installer no longer provides ongoing support
- Installations where inverter end-of-life is approaching and active management is needed
