Path-Q Solar
When should I request a separate battery quote instead of accepting the battery included in a solar package?
Answer
Request a separate battery quote when the package does not clearly state the battery's usable capacity, power, backup capability, controls, warranty, installed price, or purpose. A separate quote is also useful when you want to compare storage with no battery or with different storage configurations.
Key points
- Compare usable energy, continuous and peak power, backup loads, duration assumptions, operating modes, and expected degradation.
- Require itemized battery, installation, controls, commissioning, and electrical-work costs.
- Ask whether the battery is intended for backup, time shifting, self-consumption, or another objective.
What it depends on
- Battery specifications and system architecture
- Desired backup loads and operating objective
- Installation scope, warranty, and future expansion options
Risks and trade-offs
- A bundled battery may be convenient but may hide its incremental cost or limitations.
- A larger battery does not necessarily provide more useful backup if power output or load controls are limited.
- Battery performance and value depend on operation, cycling, degradation, and the home's load profile.
Information you may need
- Complete battery model and specifications
- Itemized package price and standalone battery price
- Backup design, warranty, controls, and expected operating strategy
Your next step
What to do next
Ask for an itemized battery addendum and at least one alternative configuration, then compare the battery's stated purpose and usable capability with the solar-only option.
Path-Q
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