Path-Q Solar

Would reducing peak demand be more valuable than generating more annual solar energy for my business?

Answer

It can be, but only when the tariff assigns substantial value to demand reduction and the system can reliably reduce the billed peak. Compare the annual value of each additional unit of peak reduction with the value of additional energy offset, using interval load data and the actual demand-charge rules.

Key points

  • Demand reduction is valuable only during the tariff's relevant measurement periods.
  • More solar energy may have limited demand value if the business peak occurs outside solar-production hours.
  • Storage and controls can target peaks but add cost and losses.
  • The best design may prioritize load management or storage before adding more panels.

What it depends on

  • Demand and energy rates
  • Interval load profile and peak timing
  • Solar production profile
  • Storage dispatch capability
  • Incremental installed cost and operating constraints

Risks and trade-offs

  • A modeled peak reduction may not persist if business operations change.
  • Oversizing storage for rare peaks can reduce financial returns.
  • Reducing demand may conflict with production schedules or comfort requirements.

Information you may need

  • At least several months of interval demand data
  • Current and proposed tariff details
  • Incremental solar and storage costs
  • Operational flexibility and critical process loads

Your next step

What to do next

Compare marginal scenarios—more panels, load controls, storage, and combinations—using the same interval bill model and reliability assumptions.

Path-Q

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Some details may depend on your location, installer, utility, incentives, regulations, or specific property.

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