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.

🛡️ Guardian HV Series · Commercial 3-Phase

Guardian HV
High-Voltage
Energy Storage

Complete commercial energy storage: Sol-Ark 3-phase inverter + ECHO HV LiFePO₄ battery bank + Guardian enclosure with 1125°F fire rating. Three configurations from 48 to 144 kWh. Ships nationwide.

48–144kWh

Capacity Range

153–460V

HV Range

314Ah

Hithium Grade-A

🛡️ Get HV Quote ☎ (858) 217-8861

Guardian® HV Series

Available

GUARDIAN HV

3 Configurations · 1125°F Fire Rated

🛡️

HV 4.0

48.2 kWh
153.6V · 48 cells
Sol-Ark 30K

🛡️

HV 5.0

96.5 kWh
307.2V · 96 cells
Sol-Ark 30K

🛡️

HV 6.0

144.7 kWh
460.8V · 144 cells
Sol-Ark 60K

Choose Your System

Three Guardian HV Configurations

Every Guardian HV system includes a Sol-Ark 3-phase inverter, ECHO HV LiFePO₄ battery, and Guardian enclosure with integrated fire suppression.

🛡️

Guardian HV 4.0

Sol-Ark 30K + ECHO 4.0HV

48.2 kWh · 153.6V
30kW 3Φ 208V
48 cells · 3×16S modules
1125°F Guardian enclosure
Hithium 314Ah · 16,000+ cycles

$22,500

🛡️

Guardian HV 5.0

Sol-Ark 30K + ECHO 5.0HV

96.5 kWh · 307.2V
30kW 3Φ 208V
96 cells · 6×16S modules
1125°F Guardian enclosure
Hithium 314Ah · 16,000+ cycles

$31,500

🛡️

Guardian HV 6.0

Sol-Ark 60K + ECHO 6.0HV

144.7 kWh · 460.8V
60kW 3Φ 480V
144 cells · 9×16S modules
1125°F Guardian enclosure
Hithium 314Ah · 16,000+ cycles

$45,500

Every Guardian HV Includes

Enterprise-Grade Protection

🔥

1125°F Fire Rating

Aerospace-grade aluminum Guardian enclosure with integrated fire suppression. Protects your investment and your facility.

🔋

Hithium 314Ah Cells

Every cell is Grade-A Hithium LiFePO₄ — zero thermal runaway, 16,000+ cycles, 25+ year design life. Same cells across the entire ECHO lineup.

📊

SunFusion Monitor

Cell-level monitoring via the SunFusion Monitor platform. SMS alerts, predictive maintenance, remote diagnostics, Storm Mode control.

⚡

Sol-Ark Inverter

All-in-one hybrid inverter with pre-wired AFCI, GFCI, rapid shutdown, and transfer switch. 10-year warranty. WiFi + Ethernet monitoring.

🧠

HV BMS Architecture

Master + slave BMS with active cell balancing. CAN bus and RS485 for native Sol-Ark communication. Cell-level voltage monitoring.

🏛️

REDS / Federal Ready

Guardian HV systems qualify for FEMA, DARPA, and DoD emergency deployment through SunFusion's REDS division. 48-hour rapid deployment capable.

Commercial HV Power. Zero Compromise.

30% federal tax credit eligible. Financing available. Free system design consultation.

🛡️ Configure Guardian HV ☎ (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

Guardian HVHigh-VoltageEnergy Storage