What is LiFePO4 and why is it safer than other batteries?

LiFePO4 (Lithium Iron Phosphate) is the safest lithium battery chemistry available. Unlike NMC batteries used by most competitors, LiFePO4 has zero thermal runaway risk — it physically cannot catch fire or explode. SunFusion exclusively uses Hithium 314Ah Grade-A LiFePO4 cells with 16,000+ cycle life.

Does SunFusion ship nationwide across the United States?

Yes. SunFusion ships Sol-Ark hybrid inverters, ECHO LiFePO4 batteries, and Guardian energy storage systems to all 50 states. Installation services are available in San Diego, Riverside, and San Bernardino Counties. Product sales and shipping are available nationwide and worldwide.

What Sol-Ark inverter models does SunFusion carry?

SunFusion carries the full Sol-Ark lineup: Sol-Ark 12K and 15K (single-phase residential), Sol-Ark 18K (single-phase whole-home), Sol-Ark 30K (3-phase 208V commercial), and Sol-Ark 60K (3-phase 480V industrial). All models include 10-year warranties and are available for immediate shipping.

What ECHO battery options are available?

SunFusion offers the ECHO 3.0 (16.38 kWh, 48V residential), ECHO 4.0HV (48.2 kWh, 153.6V, 48 cells), ECHO 5.0HV (96.5 kWh, 307.2V, 96 cells), and ECHO 6.0HV (144.7 kWh, 460.8V, 144 cells). All use Hithium 314Ah Grade-A LiFePO4 cells with 16,000+ cycle life and are compatible with Guardian HV enclosures.

Is there a federal tax credit available for solar and battery storage?

Yes. The Inflation Reduction Act provides a 30% federal tax credit on the full installed cost of solar and battery storage systems through 2032. On a $30,000 system, that is $9,000 back at tax time. SunFusion systems qualify for this credit.

How long do ECHO LiFePO4 batteries last?

ECHO batteries using Hithium 314Ah Grade-A LiFePO4 cells are rated for 16,000+ cycles at 98% depth of discharge, with a calendar life of 25+ years. This means daily cycling for over 40 years before reaching end of life. SunFusion batteries come with a 15-year warranty.

What is SunFusion's failure rate compared to the industry?

SunFusion has achieved a 9% failure rate, compared to the industry average of 30-60%. This is accomplished by using only Hithium Grade-A cells, Sol-Ark inverters, and treating every installation as a 40-year investment. SunFusion has had zero field failures since launching the ECHO 3.0 platform in 2023.

Is monitoring included with SunFusion systems?

Third-party monitoring (such as Solar Assistant) may be provided as a courtesy at no cost, but it is not designed, maintained, or warranted by SunFusion. SunFusion Monitor is our proprietary premium add-on monitoring platform with cell-level monitoring, PSPS alerts, Storm Mode, and 25-year data retention. It is available at additional cost and is the only monitoring system supported by SunFusion.

How do I contact SunFusion Energy Systems?

The best ways to reach SunFusion are by text message to (858) 217-8861, email to info@sunfusion.us, or leaving a detailed voicemail. As the founder and sole owner/operator of a rapidly growing company, Mr. Ellard personally reviews every message and will investigate your issue and get back to you.

SunFusion Product Catalog

Sol-Ark hybrid inverters, ECHO LiFePO₄ batteries, and Guardian energy storage systems. Ships nationwide USA. C-10 License #1053778.

⚡ Sol-Ark Hybrid Inverters

The World's Best Inverters

Grid-tie, off-grid, and backup power in a single unit. All-in-one pre-wired with 10-year warranty.

Residential

⚡

Sol-Ark 15K

Single-Phase Hybrid Inverter

15kW1Φ 120/240V48V Battery

Single-Phase Hybrid Inverter

18kW1Φ 120/240V350A Charger

3-Phase 208V Hybrid Inverter

30kW3Φ 120/208V4 MPPTsStack→300kW

3-Phase 480V Hybrid Inverter

60kW3Φ 277/480V78kW PVStack→600kW

Starting from$18,000

View Details →

🔋 ECHO LiFePO₄ Batteries

Hithium 314Ah · 16,000+ Cycles

Grade-A LiFePO₄ cells. Zero thermal runaway. 25+ year design life. 48V residential and high-voltage commercial.

48V · Residential

🔋

ECHO 3.0

16.38 kWh · 51.2V · 16S1P

16.38kWh51.2V314Ah16,000+ Cycles

48.2 kWh · 153.6V · 48S1P

48.2kWh153.6V3×16S314Ah Hithium

96.5 kWh · 307.2V · 96S1P

96.5kWh307.2V6×16S314Ah Hithium

144.7 kWh · 460.8V · 144S1P

144.7kWh460.8V9×16S314Ah Hithium

Starting from$27,500

View Details →

🛡️ Guardian Energy Storage Systems

Complete Backup Power Solutions

Sol-Ark inverter + ECHO batteries in a Guardian enclosure with 1125°F fire rating and integrated fire suppression.

Residential · 48V

🛡️

Guardian E2.0 48kWh

Sol-Ark 18K + 3× ECHO 3.0

49.14kWh18kW1125°F24hr+ Backup

Modular Expandable Tower

48–96kWhFire SuppressionStackable

Sol-Ark 30K/60K + ECHO HV

48–144 kWh153–460V3-Phase1125°F

Starting from$22,500

View All HV Systems →

HV · 48.2 kWh

🛡️

Guardian HV 4.0

Sol-Ark 30K + ECHO 4.0HV

48.2kWh153.6V30kW48 Cells

Sol-Ark 30K + ECHO 5.0HV

96.5kWh307.2V30kW96 Cells

Sol-Ark 60K + ECHO 6.0HV

144.7kWh460.8V60kW144 Cells

Starting from$45,500

View Details →

Ready to Cut Your Electric Bill?

No pressure. No obligation. Just honest answers from a company with 40+ years experience.

⚡ Get Free Consultation ☎ (858) 217-8861

SunFusion Energy Systems — Shipping Nationwide USA

States: California, Texas, Florida, Arizona, Nevada, Colorado, Georgia, North Carolina, Washington, Oregon, New York, Illinois, Ohio, Pennsylvania, Virginia, Tennessee, Michigan, Massachusetts, Maryland, Minnesota, Wisconsin, Missouri, Indiana, South Carolina, Alabama, Louisiana, Kentucky, Oklahoma, Connecticut, Utah, Iowa, Arkansas, Kansas, Nebraska, New Mexico, Hawaii, Idaho, Montana, Wyoming, Alaska, Vermont, Maine, New Hampshire, Rhode Island, Delaware

Cities: Los Angeles, San Francisco, San Diego, Phoenix, Las Vegas, Denver, Dallas, Houston, Austin, Miami, Tampa, Orlando, Atlanta, Nashville, Charlotte, Seattle, Portland, New York, Chicago, Boston, Philadelphia, Washington DC, Minneapolis, Detroit, Columbus, Indianapolis, Salt Lake City, Honolulu

Solar battery storage, home backup power, commercial energy storage, off-grid solar, LiFePO4 batteries, Sol-Ark inverters, Guardian systems, whole home battery backup, best solar company USA.

📱 Best Way to Reach Us

Text (858) 217-8861 · Email info@sunfusion.us · Voicemail with details
Mr. Ellard reviews every message and will get back to you.