Image of the Tesla Powerwall 3 solar battery system, showcasing its sleek, modern 13.5kWh design with a built-in 20kW PV inverter, offering efficient energy storage and seamless integration with Tesla solar and EV products, suitable for Lehi, UT homeowners.

EG4 PowerPro ESS vs. Tesla Powerwall 3: Which Solar Battery Wins for Lehi, UT Homeowners?

Solar
June 12, 2025•4 min read

Ask Solar Mike


Ask Solar Mike

Lehi, Utah, is a solar paradise with over 220 sunny days a year, rising Rocky Mountain Power rates, and a rare 1:1 net metering policy for solar systems 10kW or smaller—one of only two Utah cities offering this deal. Pairing solar with a battery lets you store energy, slash bills, and stay powered during outages. At Ask Solar Mike, we’re comparing two top batteries—the EG4 PowerPro ESS (14.3kWh) and Tesla Powerwall 3 (13.5kWh)—both installed for just $16,000. Check out the images below to see their designs, and let’s find the best fit for your Lehi home!

Why Solar + Storage in Lehi?

Lehi’s 1:1 net metering means you get full credit for every kilowatt-hour your solar system (10kW or smaller) sends to the grid, maximizing savings. Combined with the 30% federal tax credit, 2025 is the year to go solar. A battery system offers:

  • Bill Savings: Use stored energy during peak rates or at night.

  • Backup Power: Stay online during Utah’s storms or outages.

  • Sustainability: Lower your carbon footprint with clean energy.

Let’s break down the EG4 PowerPro ESS and Tesla Powerwall 3 to help you decide.

EG4 PowerPro ESS: More Battery for Your Buck

The EG4 PowerPro ESS pairs an 18kW PV hybrid inverter with a 14.3kWh WallMount All-Weather Battery, offering more storage than Tesla for the same price. (See EG4 image below)

Key Features:

  • Battery: 14.3kWh LiFePO4 (~11.4kWh usable for warranty).

  • Inverter: 18kW PV input, 12kW output (120/240V).

  • Efficiency: 99% roundtrip with EG4 inverter.

  • Highlights: Self-heating for cold climates, LCD touchscreen, scalable up to 28.6kWh, works with EG4, Victron, or Sol-Ark inverters.

  • Installed Cost: $16,000 (with battery, inverter, and installation).

Pros:

  • More Capacity: 14.3kWh vs. Tesla’s 13.5kWh for the same $16,000.

  • Budget-Friendly: High storage at a competitive price.

  • Cold-Weather Ready: Self-heating thrives in Lehi’s winters.

  • Scalable: Add batteries for EVs or future needs.

Cons:

  • Installation: May need extra rapid shutdown (RSD) components for Utah codes, slightly increasing complexity.

  • Design: Functional but less sleek than Tesla.

  • Retrofitting: Less ideal for existing solar setups.

Best For: Lehi homeowners wanting maximum storage, scalability, and cold-weather performance on a budget.

Image of the EG4 PowerPro ESS solar battery system, featuring a robust 14.3kWh WallMount All-Weather Battery with a functional design, self-heating capability for cold climates, and an integrated 18kW PV hybrid inverter, ideal for Lehi, UT homeowners seeking efficient energy storage.

Tesla Powerwall 3: Premium Tech & Style

The Tesla Powerwall 3 is an all-in-one solar and battery system with a sleek design and Tesla’s tech ecosystem. (See Powerwall 3 image below)

Key Features:

  • Battery: 13.5kWh usable capacity (LFP chemistry).

  • Inverter: 20kW PV input, 11.5kW continuous output (30kW peak).

  • Efficiency: 97.5% with six MPPTs for solar optimization.

  • Highlights: Built-in RSD, Tesla app monitoring, seamless EV/solar integration.

  • Installed Cost: $16,000 (with battery, inverter, and installation).

Pros:

  • Sleek Design: Modern look with intuitive app control.

  • High Power: 11.5kW continuous, 30kW peak for heavy appliances.

  • Code-Compliant: Built-in RSD simplifies Utah permitting.

  • Tesla Ecosystem: Ideal for homes with Tesla solar or EVs.

Cons:

  • Less Storage: 13.5kWh vs. EG4’s 14.3kWh for the same price.

  • Cold Weather: No built-in heating, less optimal for Lehi winters.

  • Supply Delays: 3–6 month wait times possible.

  • Expansion: Costly to add more Powerwalls.

Best For: Tech-savvy Lehi homeowners who prioritize style, integration, and ease of installation.

Image of the Tesla Powerwall 3 solar battery system, showcasing its sleek, modern 13.5kWh design with a built-in 20kW PV inverter, offering efficient energy storage and seamless integration with Tesla solar and EV products, suitable for Lehi, UT homeowners.

Head-to-Head Comparison

Comparison table of EG4 PowerPro ESS and Tesla Powerwall 3 solar battery systems. Columns include features: Battery Capacity (14.3kWh/~11.4kWh usable for EG4, 13.5kWh fully usable for Tesla), Inverter Power (18kW PV/12kW output for EG4, 20kW PV/11.5kW output for Tesla), Efficiency (99% for EG4, 97.5% for Tesla), Installed Cost ($16,000 for both), Scalability (up to 28.6kWh for EG4, up to 40.5kWh DC-coupled for Tesla), Cold Weather (self-heating for EG4, no built-in heating for Tesla), Aesthetics (functional for EG4, sleek/modern for Tesla), and Warranty (10 years for both).

Which Battery for Your Lehi Home?

  • EG4 PowerPro ESS: Choose this for more storage (14.3kWh), scalability, and cold-weather reliability at $16,000. Perfect for budget-conscious homeowners or those planning EVs.

  • Tesla Powerwall 3: Pick this for premium design, Tesla integration, and streamlined installation at $16,000. Ideal for those valuing aesthetics and tech.

Lehi’s 1:1 net metering and the 30% tax credit make both systems a smart investment. With rising rates and Tesla’s potential delays, now’s the time to act.

Why Ask Solar Mike in Lehi?

At Ask Solar Mike, we deliver top-tier solar and battery solutions tailored to Lehi’s unique needs. Our licensed, insured team ensures fast, reliable installations with 5-star service.

Why Choose Us:

  • Local Expertise: We know Lehi’s net metering and codes.

  • Free Consultations: Personalized advice, no pressure.

  • Maximized Savings: We navigate Utah incentives for you.

  • Trusted Quality: Lehi’s go-to solar pros.

Act Now for Lehi’s Best Solar Deal!

Don’t miss Lehi’s 1:1 net metering or the 30% federal tax credit. Whether you want the EG4 PowerPro ESS’s extra storage or the Tesla Powerwall 3’s sleek tech, Ask Solar Mike has you covered at $16,000 installed. Schedule your FREE consultation today:

Power your Lehi home, save big, and secure your energy future. Act fast—savings and incentives won’t wait!

Solar BatteryLehi UTEG4 PowerPro ESSTesla Powerwall 3Net MeteringUtah SolarEnergy Storage
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