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.

☀️ Residential Solar + Storage

Power Your Home.
Protect Your Family.

Complete residential solar and battery storage systems. Sol-Ark hybrid inverters + ECHO LiFePO₄ batteries. Cut your electric bill to nearly zero. Whole-home backup during outages. 30% federal tax credit.

Electric Bill Goal

30%

Tax Credit

16K+

Battery Cycles

40+

Years Experience

⚡ Get Free Quote ☎ (858) 217-8861

Residential Systems

Available

HOME SOLAR

Sol-Ark + ECHO LiFePO₄

⚡

Sol-Ark 15K/18K

Hybrid Inverter
Whole-Home Backup

🔋

ECHO 3.0

16.38 kWh
314Ah LiFePO₄

🛡️

Guardian

1125°F Enclosure
Fire Suppression

Residential Systems

Choose Your Home System

Every residential system includes Sol-Ark inverter, ECHO LiFePO₄ batteries, professional installation in SoCal, and real-time monitoring. Product sales ship nationwide.

⚡

Sol-Ark 15K System

15kW hybrid inverter + ECHO 3.0 batteries. Ideal for homes up to 2,500 sq ft with moderate usage.

15kW continuous power
Up to 32.76 kWh storage
Whole-home backup

From $11,175

⚡

Sol-Ark 18K System

18kW hybrid inverter + ECHO 3.0 batteries. Our best seller for homes needing maximum backup power.

18kW continuous power
Up to 49.14 kWh storage
350A battery charger

From $13,175

🛡️

Guardian E2.0 48kWh

Complete system: Sol-Ark 18K + 3× ECHO 3.0 in Guardian enclosure. 1125°F fire rated. 24+ hour backup.

49.14 kWh total storage
1125°F Guardian enclosure
24+ hours backup

From $27,373

Why Solar + Storage

The Benefits Are Real

💰

Eliminate Your Electric Bill

Most SunFusion customers see their electric bill drop to near zero. Solar generates free power during the day; batteries store it for night.

🏠

Whole-Home Backup

When the grid goes down, your Sol-Ark inverter switches to battery in under 5ms. Your family won't even notice the outage.

☀️

30% Federal Tax Credit

The Inflation Reduction Act provides a 30% tax credit on the full installed cost through 2032. On a $30K system, that's $9,000 back.

Free Solar Consultation

No pressure. No obligation. Just honest answers about what solar can do for your home.

⚡ Get Free Quote ☎ (858) 217-8861

📱 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.

SunFusion Energy Systems — 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

Cities: Los Angeles, San Francisco, San Diego, Phoenix, Las Vegas, Denver, Dallas, Houston, Miami, Atlanta, Nashville, Seattle, Portland, New York, Chicago, Boston, Philadelphia, Washington DC

Power Your Home.Protect Your Family.