How much does a solar plus battery system cost?

SunFusion Sol-Ark systems start at $5,999. ECHO 3.0 LiFePO4 batteries start at $3,175. The Guardian whole-home system starts at $27,373. The 30% federal tax credit (IRA) applies to all systems, significantly reducing net cost.

What makes SunFusion's batteries better than competitors?

SunFusion uses LiFePO4 (lithium iron phosphate) chemistry — zero thermal runaway risk, 16,000+ cycle life vs 3,000-5,000 for NMC competitors. Our industry-leading 9% failure rate compares to the competitor average of 30-60%.

Is SunFusion licensed to install solar in California?

Yes. SunFusion Energy Systems Inc. holds California C-10 Electrical Contractor License #1053778. Walter Ellard, founder and CEO, has 40+ years of electrical and energy industry experience.

What areas does SunFusion serve?

SunFusion installs throughout San Diego County, Riverside County, and San Bernardino County — including Temecula, Murrieta, Corona, Riverside, Palm Springs, San Bernardino, Redlands, and Rancho Cucamonga. We sell and ship Sol-Ark inverters, ECHO 3.0 batteries, and Guardian systems worldwide.

Does SunFusion sell products worldwide?

Yes. SunFusion sells and ships Sol-Ark hybrid inverters, ECHO 3.0 LiFePO4 battery systems, and Guardian energy storage solutions to customers worldwide. Contact us at (858) 217-8861 or info@sunfusion.us for international orders.

What is the ECHO 3.0 LiFePO4 battery cycle life?

The ECHO 3.0 LiFePO4 battery is rated for 16,000+ charge cycles — approximately 43+ years of daily use. This is 3-5x longer than NMC battery systems used by most competitors, and means you will likely never need to replace your battery bank.

Does SunFusion support FEMA and government agencies?

Yes. SunFusion's REDS (Rapid Energy Deployment Systems) division serves FEMA, DARPA, DoD, and federal facilities with ruggedized, deployable energy storage systems capable of 48-hour deployment to any location nationwide.

Does SunFusion offer financing?

Yes — $0-down solar loans, PACE financing, and lease/PPA options are available. Combined with the 30% federal solar tax credit, most customers achieve positive cash flow from day one.

Guardian E2.0 18K | Enhance Your Power Backup Today

SunFusion Energy Guardian E2.0
SunFusion Energy Guardian E2.0
Powered by Sol-Ark® Premium Technology
Intelligent. Integrated. Unstoppable.
⚡

                        Maximum Backup Power
                    
18 kW AC Output
200A Grid Pass-Through
Seamless UPS Transfer
Whole Home Backup
☀️

                        Advanced Solar Integration
                    
6X DC Solar Ports
3X Full-Sized MPPT
36A Per MPPT Controller
Optimized Solar Harvest
🔋

                        Flexible Energy Storage
                    
350A Battery Charger
2X 48V Battery Ports
UL9540 Safety Certified
Scalable Capacity
SYSTEM ONLINE
SunFusion
E2.0
18kW Hybrid Inverter
☀️
Solar Arrays
⚡
Grid Connection
🔋
Battery Bank
🏠
Home Loads
⚙️
Generator
🌐

                        Smart Grid Control
                    
Time-of-Day Optimization
Peak Shaving Control
5ms Transfer Speed
Virtual Power Plant Ready
🔧

                        Generator Integration
                    
Dedicated GEN Port
Auto-Start Capable
AC Coupling Support
Fuel Optimization
📱

                        Intelligent Monitoring
                    
Real-Time Analytics
Mobile App Control
Remote Diagnostics
Weather Integration
18kW
AC Output Power
200A
Pass-Through Current
350A
Battery Charging
6
Solar Inputs
5ms
Transfer Time
UL9540
Safety Certified