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.

Terms of Service — SunFusion Energy Systems

1. Acceptance of Terms

By accessing or using the website, monitoring platform, or SMS notification services provided by SunFusion Energy Systems Inc. ("SunFusion," "we," "us," or "our"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use our services.

SunFusion Energy Systems Inc. is a licensed C-10 electrical contractor (License #1053778) based in San Diego, California.

2. Services

SunFusion provides solar energy and battery storage installation, monitoring, and maintenance services. Our services include:

Design, installation, and commissioning of solar photovoltaic and battery storage systems
Real-time system monitoring through our online monitoring platform
SMS text message notifications regarding system status, installation scheduling, and service appointments
Ongoing system maintenance and support

3. SMS Messaging Terms

By opting in to SMS notifications through our sign-up form at sunfusion.us/sms-signup, you agree to the following terms:

      Consent: You provide express written consent to receive text messages from SunFusion Energy Systems Inc. at the mobile phone number you provide. You confirm that you are the account holder or authorized user of the mobile phone number submitted.
    

Message Types: System status alerts (battery state-of-charge warnings, inverter faults, grid outage notifications), installation scheduling confirmations and updates, and service appointment approvals and notifications.
Message Frequency: Message frequency varies based on your system's activity and your service needs. You may receive messages during system events, when service appointments are scheduled, or when installation milestones are reached.
Costs: Standard message and data rates from your wireless carrier may apply. SunFusion does not charge for SMS messages, but your carrier may.
Opt-Out: You may opt out of SMS notifications at any time by replying STOP to any message from (888) 401-0282. After opting out, you will receive a single confirmation message and no further texts.
Help: For assistance, reply HELP to any message or call us at (888) 401-0282.
Opt-In Keywords: You may also opt in to SMS notifications by texting START, SUBSCRIBE, or YES to (888) 401-0282.
No Marketing: We use this messaging service exclusively for operational notifications related to your solar and battery system. We do not send promotional or marketing text messages.
Carrier Liability: Wireless carriers are not liable for delayed or undelivered messages. Message delivery is subject to effective transmission by your wireless carrier.

4. Monitoring Platform

Our monitoring platform provides real-time and historical data about your solar and battery storage system. While we strive for accuracy, the data displayed is provided for informational purposes and may not reflect real-time conditions due to communication delays or equipment limitations. SunFusion is not liable for decisions made based on monitoring data.

5. User Accounts

Access to certain features of our services may require creating an account. You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account. You agree to notify us immediately of any unauthorized use of your account.

6. Acceptable Use

You agree not to:

Use our services for any unlawful purpose
Attempt to gain unauthorized access to our systems, monitoring platform, or other users' accounts
Interfere with or disrupt the operation of our services
Reverse engineer, decompile, or disassemble any part of our monitoring platform or software
Reproduce, distribute, or create derivative works from our content without permission

7. Intellectual Property

All content, software, designs, logos, and materials on our website and monitoring platform are the property of SunFusion Energy Systems Inc. or its licensors and are protected by applicable intellectual property laws. You may not use our intellectual property without our prior written consent.

8. Limitation of Liability

To the maximum extent permitted by law, SunFusion Energy Systems Inc. shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of our services, website, monitoring platform, or SMS notifications. Our total liability for any claim shall not exceed the amount you paid for the specific service giving rise to the claim.

This limitation applies to, but is not limited to: system monitoring inaccuracies, delayed or undelivered SMS notifications, interruptions in monitoring service, and reliance on system data for energy management decisions.

9. Disclaimer of Warranties

Our website, monitoring platform, and SMS notification services are provided "as is" and "as available" without warranties of any kind, either express or implied. We do not warrant that our services will be uninterrupted, error-free, or free of harmful components.

Equipment warranties (solar panels, inverters, batteries) are provided by the respective manufacturers and are subject to their terms and conditions, not these Terms of Service.

10. Indemnification

You agree to indemnify and hold harmless SunFusion Energy Systems Inc., its officers, employees, and agents from and against any claims, liabilities, damages, losses, or expenses arising from your use of our services or violation of these Terms.

11. Governing Law

These Terms are governed by and construed in accordance with the laws of the State of California, without regard to its conflict of law provisions. Any disputes arising under these Terms shall be resolved in the courts located in San Diego County, California.

12. Changes to Terms

We reserve the right to modify these Terms at any time. We will notify you of material changes by posting the updated Terms on our website with a revised effective date. Your continued use of our services after changes are posted constitutes acceptance of the modified Terms.

13. Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions shall continue in full force and effect.

14. Contact Us

If you have questions about these Terms of Service, please contact us:

SunFusion Energy Systems Inc.
San Diego, California
Phone: (888) 401-0282
Email: support@sunfusion.us
Website: sunfusion.us