Path-Q Solar
What usage records should a small business collect before requesting solar proposals?
Answer
Collect at least a representative history of bills plus interval or 15-minute data if available, operating schedules, demand information, major-load details, and planned changes. These records allow providers to size the system against actual timing of use rather than annual kWh alone.
Key points
- Gather bills showing kWh, billing periods, rate categories, fixed charges, and demand charges.
- Obtain interval data for a period that captures normal operating and seasonal conditions.
- Record operating days, hours, shutdown periods, and unusual events.
- List major loads, their schedules, planned equipment, and expected business changes.
What it depends on
- The business's meter type and data availability
- Rate structure and demand-charge treatment
- Seasonal and operational variability
- Planned expansion, equipment replacement, or schedule changes
Risks and trade-offs
- Annual totals can hide demand peaks and poor alignment between load and solar production.
- Atypical operating periods can lead to an unsuitable system size.
- Missing rate or demand information makes financial comparisons unreliable.
Information you may need
- Complete bill history and rate schedules
- Interval consumption data
- Operating calendar and load schedule
- Major equipment list and future business plans
Your next step
What to do next
Request interval data from the electricity provider or meter system, organize it with bills and operating schedules, and provide the same packet to each proposer.
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