Complete DIY Home Solar Kits — Battery + Inverter for Grid or Off-Grid

HARVEST THE POWER OF SAVINGS

Your Black Friday Specials Are Here

Get $50 off for every $1500 spent

Free shipping on U.S. mainland orders $4000+
(Excludes solar panel-only orders)

FREE Guardian ($569 Value) with the Envy + eForce Bundle

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POWER UP AND SAVE

Limited Time Offer:
Enjoy Free Shipping!

On U.S. mainland orders $4,000+
— now through December 31, 2025.
(Excludes solar panel-only orders)

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BUNDLE & MAXIMIZE PERFORMANCE

Receive a Free Guardian Gateway when you purchase an eForce + Envy Inverter

Plus, 15-year battery warranty and VPP participation — now through December 31, 2025.

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SEAMLESS POWER FOR MODERN LIVING

Backed by 15 Years of Trusted Performance

Enjoy peace of mind with an industry-leading 15-year warranty, ensuring your eForce battery delivers reliable power for years to come.

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Custom Solar in Minutes

Design Your Perfect System

Use our free tool to size your solar and battery setup based on your energy needs, backup priorities, and budget—no guesswork required.

Start Designing

Complete Kits, Zero Guesswork

Shop pre-built solar and battery systems designed for fast, frustration-free installation.

Pro-Grade Gear You Can Trust

We only carry high-quality products used by installers and off-grid professionals nationwide.

Real Tech Support, Not Just a Store

Our U.S.-based team is here to answer your questions before, during, and after your purchase.

Our Most Popular Products

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Fortress Power eBoost 16kWh LFP Battery + Solo 6.5kW Inverter | Off Grid Solar Battery Backup System $5,439.00

Fortress Power Solo 6.5kW Off-Grid Solar Bundle with 10.8kWh eFlex MAX Batteries $4,663.00

Fortress Power eBoost 16kWh Lithium Battery + Envy Duo 21 Hybrid Inverter 16kW Output | DIY Solar Systems Kits $9,555.00

Fortress Power eForce 19.2kWh + Envy True 12kW Hybrid Inverter Bundle $12,937.00

Fortress Power eFlex Max 5.4kWh Small Solar Battery

Fortress Power eFlex MAX 5.4kWh Lithium Solar Battery ~~$1,899.00~~ From $1,449.00

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Fortress Power eBoost 16kWh Solar Battery + eWay with 750A Busbars for Paralleling | DIY-Friendly Home Backup $3,890.00

Fortress Power eBoost 16kWh Solar Battery with eWay Lite | Simplified DIY Wiring Solution $3,740.00

Fortress eForce 9.6kWh-28.8kWh Solar Lithium Battery Stackable

Fortress Power eForce Stackable 9.6kWh-28.8kWh LFP Battery From $4,399.00

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Fortress Power Solo 6.5K Off-Grid Inverter | All-in-One | 48V ~~$1,649.00~~ $1,549.00

Fortress Power Envy True 12kW 48V On Grid Inverter Package

Fortress Power Envy True 12kW Hybrid Solar Inverter $4,898.00

Fortress Power Envy Duo 21 48V Hybrid Solar Inverter – 16kW High-Power Output for Home & Small Business ~~$5,398.00~~ $5,065.00

Shop by Category

Find exactly what you need—fast. Explore our most popular solar, battery, and off-grid gear, all organized for easy browsing.

High-Efficiency Solar Panels for DIY Installations

DIY Off-Grid Solar Kits for Cabins, Sheds & Remote Living

48V Solar Batteries for Home Backup, Light Commercial & Off-Grid Systems

Solar Inverters for DIY Grid-Tied & Off-Grid Systems

Solar Accessories & Components

Why Shop with EcoVault

We’re not just another online store. Here’s what makes us different.

🧰 Built for DIY

Our kits are designed for homeowners and installers—no confusing part lists or mismatched components.

🎓 Expert Guidance

From system design to post-install support, we’re here with real answers every step of the way.

✅ Trusted Brands Only

We vet every product before it hits our shelves. No no-name imports. No cut corners.

📦 Reliable Shipping

Orders ship quickly from U.S. warehouses with careful packaging and tracking updates.

Not Sure What You Need?

Try our free System Design Tool to build the right solar + battery setup based on your home, usage, and backup goals.

Start Designing Now

What Our Customers Are Saying

Real feedback from real people—see why DIYers and off-grid homeowners trust EcoVault for their energy projects.

“The kit came with everything I needed.”

Super easy to install, and the support team walked me through the wiring questions I had. I’ll definitely be ordering again.

Mike B., Arizona

“Best experience I’ve had buying solar gear online.”

Fast shipping, great packaging, and it actually worked out of the box. No surprises.

Danielle T., North Carolina

“Straightforward, no fluff.”

I used the design tool, ordered a kit, and had power in my off-grid cabin in under a week.

Ron K., Montana

Trusted Brands, Proven Performance

We only carry products from industry-leading manufacturers known for quality, reliability, and real-world results. No knockoffs. No shortcuts.

Reliable power where the grid can’t reach.

Off-Grid Systems

Perfect for cabins, homesteads, and remote properties—our off-grid kits are designed for full energy independence.

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Stay powered when the grid goes down.

Grid-Tied Backup

Add battery storage to your solar setup for seamless backup during outages and smarter energy use every day.

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Smart energy solutions for small businesses and farms.

Light Commercial

Keep critical loads running, cut peak demand charges, and qualify for rebates with our scalable commercial-ready systems.

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The EcoVault Blog

Your Source for Solar Tips, Product Guides, and Energy Insights

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Complete Kits, Zero Guesswork

Pro-Grade Gear You Can Trust

Real Tech Support, Not Just a Store