Path-Q Solar

How can I estimate solar needs when my electricity bills cover multiple properties?

Answer

Separate the consumption and billing terms by property before sizing solar. Build a monthly usage profile for each meter, identify which properties the proposed system can serve, and then compare combined and property-specific designs under the applicable metering and credit rules.

Key points

  • Do not treat a combined bill total as one load unless the meters and crediting arrangement support that treatment.
  • Normalize for occupancy, weather, vacancy, renovations, and unusual one-time use.
  • Consider future changes such as tenant turnover, electrification, or property sale.

What it depends on

  • Meter-by-meter consumption and rate information
  • Which properties are electrically connected or eligible to share credits
  • Ownership, occupancy, future loads, and proposed system locations

Risks and trade-offs

  • A combined estimate can hide different load profiles and rate structures.
  • Sizing to temporary or tenant-specific consumption may reduce future value.
  • A system limited to one property may have a different feasible size and economic outcome than a shared arrangement.

Information you may need

  • Recent bills for every property and meter
  • Property occupancy, major appliances, heating, cooling, and planned load changes
  • Current utility rules for multi-property generation and allocation

Your next step

What to do next

Create a meter-by-meter annual and monthly usage table, then ask a provider to compare feasible property-specific and shared-credit designs.

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Find the right next step

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

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