Path-Q Solar
How should a business's production equipment expansion affect a solar design?
Answer
Treat the expansion as a future load with its own power rating, operating schedule, and commissioning date. Solar should be evaluated against both current consumption and the credible post-expansion load, rather than assuming historical bills represent future demand.
Key points
- Separate annual energy use from short-duration peak demand.
- Equipment operating during sunny hours may use more solar directly than equipment operated at night or in shifts.
- A staged design may be appropriate if expansion timing, equipment selection, or production volume is uncertain.
- Electrical service capacity, interconnection limits, and roof or site constraints may limit how much solar can be added.
What it depends on
- Equipment nameplate power and expected duty cycle
- Production schedule, shifts, and seasonal utilization
- Expansion timing and confidence in projected production
- Existing load profile and available electrical service
Risks and trade-offs
- Sizing for an expansion that is delayed or cancelled can reduce financial performance.
- Sizing only for current use may require a later redesign or miss an opportunity to coordinate installation.
- High peak loads may require service or demand-management work that solar alone does not solve.
Information you may need
- Equipment list, ratings, and expected run hours
- Production schedule and growth assumptions
- Current interval load data or demand records
- Planned electrical-service changes and installation timeline
Your next step
What to do next
Prepare current, committed-expansion, and high-growth load scenarios and use them to request a design that explains sizing and expansion provisions.
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