Reliable Alternative Energy Systems Installed With Precision

Efficient. Dependable. Built to Perform.


At Hardtke Enterprises, Inc., we design and install alternative energy systems using proven installation standards and a documented customer installation process to ensure long-term performance and reliability.

Are you thinking about installing a solar system?

Hardtke Enterprises, Inc. encourages its customers to do as much of the solar system installation as they can or want to. We would propose to include all the required materials along with supervision and commissioning of the total solar system. If that is something that you think would worth looking into, please call me at 406-860-7400

We are right here in Billings, MT and have been installing solar systems for the last 24 years. We do not sell Chinese solar panels. I have 90 American made solar panels in stock.

Why Choose Hardtke Enterprises, Inc.?

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  • Customer-First Installation Standards

    Every project follows our documented Customer Installation Statement, ensuring proper setup, system performance verification, and customer walkthrough before completion.

  • Reliable Energy Performance

    We focus on long-term energy efficiency and system reliability — not quick installs.

  • Professional & Transparent Process

    From consultation to final testing, we keep you informed every step of the way.

About Us

At Hardtke Enterprises, Inc., we specialize in advanced Alternative Energy Systems designed to improve efficiency, reduce operating costs, and deliver dependable performance for your home or property. Our team is committed to high-quality installations backed by proven processes and a strong customer-first approach.


We don’t just install systems — we stand behind our work with a clear Customer Installation Statement, giving you confidence that every project is completed with precision, transparency, and long-term reliability in mind.

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Our Alternative Energy Solutions

Hardtke Enterprises, Inc. provides comprehensive alternative energy system services tailored to meet residential needs. Whether you're upgrading an existing system or planning a new installation, we deliver customized solutions that maximize efficiency and performance.

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Customized energy system plans tailored to your property’s needs, ensuring maximum efficiency, optimal sizing, and long-term performance.

Worker connecting wires on a solar panel array on a rooftop.

Expert installation following industry best practices and our Customer Installation Statement, ensuring your system works safely and reliably from day one.

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Enhance the performance of existing systems with targeted upgrades, improving energy output, efficiency, and overall system lifespan.

Wooden house model with energy efficiency rating, showcasing a colorful gradient.

Identify and implement solutions to reduce energy waste, lower utility costs, and get the most from your alternative energy system.

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Comprehensive support, maintenance, and inspections to keep your system operating at peak performance for years to come.

Testimonials

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Mark & Jennifer L., Homeowners

“Hardtke Enterprises transformed our home energy setup! The team was professional from start to finish, and the Customer Installation Statement gave us complete peace of mind. Our system runs flawlessly, and our energy bills have dropped significantly.”

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Sarah T., Residential Client

“We were impressed with the attention to detail and the level of service provided. The installation process was smooth, and the staff explained everything clearly. Highly recommend Hardtke Enterprises for any energy system needs.”

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David R., Homeowner

“From the design phase to ongoing support, Hardtke Enterprises exceeded our expectations. Our solar system is performing perfectly, and we love knowing that the installation was done right the first time.”

Take Control of Your Energy Future

Upgrade your property with high-performance alternative energy systems installed with precision and care.