Storage & backup
Plan backup for the power you need.
Backup starts with the appliances or equipment you need during an outage and how long they need to run. We'll help you review battery options, the supported loads, installation requirements and costs.
Compare my options01Options to review
What each option meansfor your project.
Home Backup
Identify the circuits to support and review whether selected-load or whole-home backup is practical.
Solar + Storage
Compare how a battery could store solar energy for later use under your utility rate schedule.
Commercial Storage
Review whether storage could address peak demand or support specific operating needs.
Backup Planning
Compare required loads, startup power and runtime before choosing equipment.
Controls & Monitoring
Confirm how the battery is controlled, what you can monitor and who handles service.
Program Eligibility
Check any current programs for your location and system; include only confirmed benefits in the comparison.
02How we approach it
What we check before recommending a project.
- A backup estimate should identify the loads, charge level and operating assumptions behind its runtime.
- Compare storage with and without solar using the site's needs and actual proposal costs.
- Review usable capacity, warranty limits, installation work and service responsibilities before selecting a system.
03Before you commit
Know the cost, the coverage and who to call.
Ask for the full payment terms, warranty documents and named installation and service providers. Those details help you understand what you are agreeing to.
Production
Understand the estimate
Ask what the output estimate assumes about your roof, usage and utility. If a provider guarantees production, check the amount, conditions and remedy in the agreement.
Protection
Know who stands behind it
Equipment and installation coverage are separate. Review the manufacturer and installer documents for the term, exclusions, roof coverage, labor and the process for a claim.
Support
Responsibilities in writing
Know who to call for monitoring, repairs and unresolved issues. Confirm Iterum’s role and any ongoing support in your project agreement.
What goes into a comparison
How we evaluate a project
Illustrative examples, not completed projects or customer testimonials.
Residential rooftop + storage
Sacramento, CA
Example scenario: a household with a summer bill several times its winter bill, a recent time-of-use rate change, and two outages the previous year.
- What we evaluate
- Iterum would start with twelve months of billed usage and the current rate schedule, then look at roof age and orientation, evening load, and how much of the bill is actually shiftable into a battery.
- Options to compare
- Ownership with cash, financed ownership, and a third-party owned PPA — each with and without storage.
- How we weigh the options
- In a project like this the comparison considers available incentives, the full costs and how long the household intends to stay. If the roof needs work inside a few years, the honest answer may be to re-roof first and revisit.
- Why it could fit
- Storage is sized to the loads that matter during an outage rather than to the whole panel, and any incentives that apply are confirmed during analysis.
04Get started
Tell us about your property.
Start with your location and what you want to change. List the appliances or equipment you need to support during an outage. Have your utility bill and details of any existing solar or battery system ready. We can then discuss energy storage & backup power, check availability and explain what needs to happen next.
Step 01
What are you looking into?
Choose a starting point. You don’t need a plan figured out yet.