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.

Sol-Ark 18K | Power Your Home Today — SunFusion Energy Systems

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Most Backup Power

18 kW AC Continuous Output
200A Grid Pass-Through
5ms Ultra-Fast Transfer
Whole Home Protection
Advanced Surge Protection

☀️

Multiple Solar Options

6X DC Solar Ports
3X Full-Sized MPPT
36A Per MPPT Controller
Maximum Solar Harvesting
Wide MPPT Voltage Range

🔋

Flexible Battery Choice

350A Battery Charger
2X 48V Battery Ports
UL9540 Safety Options
Scalable Energy Storage
LiFePO4 Compatible

Sol-Ark®

SYSTEM ONLINE

SOLAR: 12.4kW LOAD: 15.8kW BATT: 92%

Sol-Ark

18K

18kW Hybrid Inverter

PREMIUM SERIES

☀️

Solar Arrays

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Grid Connection

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Battery Bank

🏠

Home Loads

⚙️

Generator

🌐

Seamless Grid Control

Multi-Season Time-of-Day
Peak Shaving Optimization
Net Metering Compatible
Virtual Power Plant Ready
Advanced Load Management

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Generator Ready

Dedicated GEN Port
AutoStart Capable
AC Coupling Support
Fuel Efficiency Mode
Load Priority Control

🛡️

Safety & Compliance

UL 1741 SA Certified
IEEE 1547-2018 Compliant
NEC 690.12 Rapid Shutdown
Arc Fault Protection
Ground Fault Detection