Expanded Protection
Fortress Plus
Generac Total Power Management System
Whole-home coverage with battery bridge and extended runtime. The PWRcell battery eliminates the gap between outage and generator startup — zero flicker, zero reset.
Complete System
What's Included
The Fortress Plus is a complete, integrated system — generator, battery, and transfer architecture engineered to work as one.
Whole-Home Load Analysis
Full-home audit ensures every circuit is accounted for — not just critical loads. We size the system to carry your entire home, not a subset of it.
Generac Standby Generator (48kW or 60kW)
Sized to carry the entire home — not just critical loads. Liquid-cooled, quiet, and built for extended runtime on natural gas or propane.
Generac PWRcell 18 kWh Battery
Bridges the gap between outage detection and generator startup. Also stores energy for daily use — reducing grid dependence even when the power is on.
Zero-Gap Automatic Transfer
No flicker, no reset. Smart home systems, medical equipment, and home office infrastructure stay live through the transition — every time.
Fuel Management & Runtime Planning
Runtime planning ensures you're never caught short during extended outages. We calculate your consumption profile and plan fuel supply accordingly.
24/7 Remote Monitoring & Alerts
Fortress watches the system so you don't have to. Real-time alerts, system health data, and proactive response — before you know there's an issue.
System Architecture
How the System Works
The Plus adds a battery layer between the grid and your home — so when utility power fails, the PWRcell bridges the gap before the generator even starts.
Source
Utility Power
Grid supply
Service
400A Service Entrance
Main disconnect
Path A
200A Transfer Switch
Generator path
Path B
200A Transfer Switch
Battery path
Battery System
Generac PWRcell Hub
18 kWh Battery Cabinet · Service Distribution
Distribution A
Main Panel A
200A · Whole home
Distribution B
Main Panel B
200A · Whole home
Generac Standby Generator
48kW / 60kW · Liquid Cooled · Nat. Gas / Propane
PWRcell Battery Cabinet
18 kWh · Clean backup · Daily storage
Ideal Applications
Built For Your Property
Luxury Primary Residence
High-end homes with smart systems, automated lighting, and premium appliances cannot tolerate even a brief power interruption. The Plus delivers seamless, zero-gap protection.
Home Office & Remote Work
When your livelihood depends on connectivity, a flicker that resets your router or drops a video call is unacceptable. The PWRcell battery ensures your office stays live through any transition.
Medical Equipment
CPAP machines, home dialysis, refrigerated medications, and other medical devices require uninterrupted power. Zero-gap transfer is not a luxury — it's a necessity.
The Battery Advantage
Why the PWRcell Changes Everything
A generator alone has a startup gap — the seconds between outage detection and full power delivery. For most homes, that gap is invisible. For homes with medical equipment, smart systems, or home offices, it's a problem. The PWRcell eliminates it entirely.
Zero-Gap Transfer
Battery delivers power instantly — no detectable interruption, no device resets, no smart home disruption.
18 kWh Storage
Enough capacity to run critical loads for hours, or bridge extended generator startup sequences.
Daily Energy Storage
When the grid is live, the PWRcell stores energy for peak-rate hours — reducing your utility bill even on normal days.
Generac Integration
Designed to work natively with Generac generators — one system, one monitoring platform, one point of contact.
Get Started
Request a Fortress Plus Consultation
A Fortress engineer will assess your home's load profile and design the exact Plus system your property requires.
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