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.

Privacy Policy — SunFusion Energy Systems

1. Introduction

SunFusion Energy Systems Inc. ("SunFusion," "we," "us," or "our") is committed to protecting the privacy of our customers, website visitors, and anyone who interacts with our services. This Privacy Policy describes how we collect, use, disclose, and safeguard your information when you visit our website at sunfusion.us, use our solar and battery monitoring platform, or engage with our SMS notification services.

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

2. Information We Collect

We may collect the following types of information:

Personal Information: Name, email address, phone number, mailing address, and installation/service address that you provide when signing up for our services, requesting a quote, or opting in to SMS notifications.
System Data: Performance data from your solar and battery storage systems, including energy production, battery state-of-charge, inverter status, and system alerts. This data is collected through our monitoring platform to provide you with system oversight and alerts.
Usage Data: Information about how you interact with our website and monitoring dashboard, including IP address, browser type, and pages visited.
Communications Data: Records of SMS messages, emails, and other communications between you and SunFusion related to your system or services.

3. How We Use Your Information

We use the information we collect for the following purposes:

To install, monitor, and maintain your solar and battery storage system
To send you system status alerts, installation updates, and service notifications via SMS to the phone number you provide
To communicate with you about your account, service appointments, and project milestones
To improve our products, services, and monitoring platform
To respond to your inquiries and provide customer support
To comply with legal obligations

      SMS Messaging: We use your phone number to send text messages only for the purposes you have consented to — specifically, system status alerts, installation scheduling updates, and service appointment notifications. We do not send marketing or promotional text messages. Message frequency varies based on system activity. Message and data rates may apply. You can opt out at any time by replying STOP.
    

4. How We Share Your Information

We do not sell, rent, or trade your personal information to third parties. We may share your information only in the following circumstances:

Service Providers: We may share information with trusted third-party service providers who assist us in operating our business, such as our SMS messaging platform (Twilio), cloud hosting services, and payment processors. These providers are contractually obligated to use your information only for the services they provide to us.
Legal Requirements: We may disclose your information if required by law, regulation, legal process, or governmental request.
Business Transfers: In the event of a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction.

Your phone number will not be shared with third parties for marketing purposes.

5. SMS Messaging Terms

By opting in to SunFusion SMS notifications through our website at sunfusion.us/sms-signup, you consent to receive text messages from SunFusion Energy Systems Inc. at the phone number you provide. Specifically:

Message Types: System status alerts (battery warnings, inverter faults, grid outage notices), installation scheduling updates, and service appointment notifications.
Message Frequency: Varies based on system activity and service needs. You may receive messages during system events, when service is scheduled, or when installation milestones are reached.
Costs: Standard message and data rates from your wireless carrier may apply.
Opt-Out: Reply STOP to (888) 401-0282 at any time to stop receiving text messages.
Help: Reply HELP to (888) 401-0282 or call us at (888) 401-0282 for assistance.
Carriers: Carriers are not liable for delayed or undelivered messages.

6. Data Security

We implement appropriate technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. Our monitoring platform uses encrypted connections and access controls to safeguard your system data. However, no method of electronic transmission or storage is 100% secure, and we cannot guarantee absolute security.

7. Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. System performance data is retained for the operational life of your system to support long-term monitoring and analysis. We will delete or anonymize your information upon request, subject to our legal obligations.

8. Your Rights

Depending on your location, you may have the following rights regarding your personal information:

Access, correct, or delete your personal information
Opt out of SMS communications at any time by replying STOP
Request a copy of the data we hold about you
Withdraw consent for data processing where consent is the legal basis

California residents may have additional rights under the California Consumer Privacy Act (CCPA). To exercise any of these rights, contact us using the information below.

9. Children's Privacy

Our services are not directed to individuals under the age of 18. We do not knowingly collect personal information from children. If we learn that we have collected information from a child under 18, we will take steps to delete it promptly.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on our website with a revised effective date. Your continued use of our services after changes are posted constitutes your acceptance of the updated policy.

11. Contact Us

If you have questions about this Privacy Policy or wish to exercise your rights, please contact us:

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