Path-Q Solar
What evidence should I request before relying on a solar production guarantee?
Answer
Request the complete guarantee, its production model, measurement method, exclusions, remedy, and claim process before treating it as protection. A production number is useful only when you can determine what is guaranteed, how it is measured, over what period, and what the provider must do if it is missed.
Key points
- Ask whether the guarantee covers modeled energy, system availability, equipment performance, or a bill outcome; these are not interchangeable.
- Request assumptions for weather, shading, soiling, degradation, outages, curtailment, maintenance, and changes to the site.
- Confirm meter or monitoring data used, reporting frequency, baseline period, measurement tolerances, and who controls the data.
- Read the remedy, payment calculation, exclusions, deadlines, dispute process, and whether the obligation survives provider or property changes.
What it depends on
- Exact written guarantee and contract hierarchy
- Production model and site assumptions
- Monitoring and measurement method
- Provider's financial and contractual responsibility
Risks and trade-offs
- Broad exclusions can make a guarantee difficult to claim.
- A production guarantee may compensate energy shortfall but not lost savings or inconvenience.
- Modeled production can be reasonable without being a promise of a particular bill reduction.
Information you may need
- Signed guarantee and related contract documents
- Production model, assumptions, and system design
- Monitoring ownership and data-access terms
- Remedy, exclusions, claim deadlines, and dispute provisions
Your next step
What to do next
Ask the provider to demonstrate a sample claim calculation using the written measurement and remedy terms, and obtain professional review if the obligation is financially significant.
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SQ00889