Path-Q Solar
Should I shift appliances to daytime hours after installing solar?
Answer
Usually consider shifting flexible loads to periods when the system is producing, but only when it is convenient, safe, and valuable under your billing arrangement. The benefit is greatest when self-used solar is worth more than exported solar and the appliance can operate without reducing comfort or safety.
Key points
- Flexible loads may include water heating, laundry, dishwashing, or vehicle charging, depending on household needs.
- Timers, automation, or equipment controls can help but may add cost or complexity.
- Some loads should not be operated unattended or outside manufacturer guidance.
- Load shifting does not eliminate the need to assess system size and seasonal production.
What it depends on
- Appliance flexibility and control options
- Hourly solar production
- Household routines
- Import and export electricity terms
- Battery or energy-management-system behavior
Risks and trade-offs
- Convenience, equipment life, noise, or safety may outweigh modest savings.
- A schedule based on average sunshine may perform poorly during weather or seasonal changes.
- Automation can create unexpected operation or demand if configured incorrectly.
Information you may need
- List of flexible loads and their energy use
- Hourly usage and production estimates
- Current billing and export terms
- Equipment instructions and control capabilities
Your next step
What to do next
Identify two or three flexible loads and test a safe daytime schedule using your production and billing assumptions before buying automation equipment.
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Some details may depend on your location, installer, utility, incentives, regulations, or specific property.
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