Time-of-Use & Bill Management
Store energy when it’s cheap, use it when it’s expensive — and reduce peak charges without changing how you live.
In many states, utilities charge different rates depending on when you use electricity. These time-of-use (TOU) pricing plans can lead to high bills — especially during peak hours in the late afternoon and evening. With a Fortress Power battery system, you can store energy when it’s cheap and use it when rates spike, saving money without sacrificing comfort.
How It Works
Fortress Power batteries charge during off-peak hours — typically when solar production is high or utility rates are low. When peak pricing kicks in, your system automatically discharges stored energy to power your home, reducing or even eliminating expensive grid usage during those high-cost windows.
It’s a smart, automatic way to control your costs and get the most from your solar setup.
Where Time-of-Use (TOU) Pricing Applies
Time-of-use pricing is increasingly common in states like California, Arizona, Massachusetts, and New York, where utilities are shifting toward demand-based billing. If your utility charges TOU rate, you may be paying 2-3 times more for the electricity that you consume during the peak hours.
Even if you don’t have TOU yet, many utilities are expected to adopt it as the grid evolves.
Battery storage gives you a long-term hedge against rising and variable electricity rates.
Benefits of Fortress Power for TOU Savings
Automatically shift usage from high-rate to low-rate periods
Pair with solar for full self-generation during peak hours
Lower your monthly bill without changing your energy habits
Add resilience with backup power during outages
Compatible with utility incentive and VPP programs in select areas
Extend the value of your solar system by using stored energy after sunset
When paired with smart system design and utility program participation, Fortress Power batteries give you the flexibility to not just survive TOU billing — but turn it into a financial advantage.
How Fortress Power Compares to Other Backup Solutions
Not all backup power is created equal. While traditional generators and older battery technologies offer some protection during outages, they come with limitations — from noise and maintenance to short lifespans and safety concerns. Fortress Power’s lithium iron phosphate (LFP) systems deliver clean, reliable, and long-lasting energy you can count on — with fewer compromises and more control.
Features | Fortress Power Solution | Other Lithium-ion Solutions
| Lead Acid | Generator |
|---|---|---|---|---|
| Applications | Backup Power, time of use, self-consumption, and off-grid | Backup Power, time of use, self-consumption, and off-grid | Backup Power | Backup Power |
| Depth of Discharge | 100% | 100% | 50% | N/A |
| Battery Chemistry | Safe Technology | Potential thermal runway or firing | Risk of harmful gasses | Environmental Pollution |
| Life Cycles | 8,000+ (15+ years) | 3,000 | 500-1,000 | N/A |
| Warranty | 10 years | 10 years | 6 months | 2 years |
| Fuel cost | $0 | $0 | $0 | $70-$130 per day |
| Maintenance | No | No | Every 6 months | Yes |
| Energy Cost ($/kWh) | 0.14 | 0.30 | 0.65 | 0.50 |
Want to Save More with Smart Energy Storage?
Talk to a Certified Installer today to see how Fortress Power can help you manage your energy use, reduce your bills, and take control of when — and how — you use power.
