Path-Q Solar

When should I pause the solar process because my electricity use is changing too quickly?

Answer

Pause or redesign the process when major changes in occupancy, heating, cooling, vehicles, appliances, business activity, or building use make recent bills a poor guide to future demand. You may not need to wait if the changes can be quantified and the design can be staged or expanded later.

Key points

  • Separate temporary changes from durable changes before using historical consumption.
  • Document expected loads, timing, operating hours, and efficiency improvements.
  • Ask for scenarios showing current use, expected use, and a reasonable range.
  • Avoid sizing solely to an unusually high or low billing period.

What it depends on

  • Nature and timing of the load change
  • Confidence in future occupancy and equipment plans
  • Whether expansion or battery storage is practical
  • System sizing and economic objectives

Risks and trade-offs

  • Waiting can delay benefits and may require redesign later.
  • Sizing to uncertain future use can lead to excess or insufficient capacity.
  • A production system cannot necessarily offset every future load because export, billing, or interconnection treatment may differ.

Information you may need

  • At least recent interval or monthly usage records
  • Planned equipment, additions, removals, and efficiency projects
  • Expected timing and operating patterns
  • Installer scenarios and expansion limits

Your next step

What to do next

Build a documented current-and-future load forecast and ask installers to price a right-sized initial system plus any expansion path before deciding whether to wait.

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