Path-Q Solar
Will solar savings improve if I charge my EV during daylight hours?
Answer
Often, charging during daylight can increase the share of solar generation used directly by the EV and may improve savings, but the actual benefit depends on the billing structure, solar output, charging schedule, battery use, and whether charging is otherwise shifted to a lower-cost period.
Key points
- The EV must be connected and able to charge while sufficient solar is available.
- Smart charging can follow solar production, but it may conflict with driving needs or other household loads.
- The relevant comparison is the cost of daytime charging versus exporting solar or charging at other times.
What it depends on
- Solar production profile and household daytime load
- EV charging flexibility and control capability
- Utility rates, export treatment, and demand or time-based charges
- Battery and charger behavior
Risks and trade-offs
- Charging only during daylight may be inconvenient or require workplace charging.
- A control system may add cost or complexity.
- The financial result cannot be determined without current billing and export terms.
Information you may need
- Typical driving and charging schedule
- Solar production estimate
- Utility rate and export information
- Charger and vehicle control capabilities
Your next step
What to do next
Compare modeled annual costs for daytime solar-following, nighttime, and other practical charging schedules using the current bill structure.
Path-Q
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Some details may depend on your location, installer, utility, incentives, regulations, or specific property.
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