Montana Solar Products

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Phone: 406-551-3703

Mon-Fri: 8am-6pm MDT

Saturday: 9am – 2pm MDT



There is a very good chance today’s solar opportunities are much greater that you ever imagined.

But, the only way you’ll know is to give us a call or schedule a fun and exciting consultation where you will learn about options and never be “sold” on anything.

We aim to inform and help you make the best decisions about your energy independence and money saving options.


We offer a range of high-quality solar panels designed to capture the sun, turning it into a clean, renewable energy source that you can rely on. 

But we don’t stop at panels. We also supply top-notch solar power inverters and state-of-the-art energy storage batteries.

Together, these components form a robust system that ensures you have access to power when you need it, even when the sun is down.


Montana Solar Products delivers premium-quality solar installations that transform your home into a hub of sustainable energy production.

We focus on ground mount rack systems. These systems offer more flexibility in location and adjustability to the seasons and time of day; making your solar system operate at its highest possible efficiency and output.

Contact us to discuss a custom designed and fabricated solar array system for your property.


What is an off-grid solar system?

An off-grid solar system is a solar power generation system that operates independently of the grid. It includes solar panels, batteries, a charge controller, and an inverter. The system stores power in batteries for use when sunlight isn’t available.

How does an off-grid solar system work?

Solar panels convert sunlight into direct current (DC) electricity. The charge controller manages the power going into the battery bank. The stored energy can then be converted to alternating current (AC) by an inverter for household use. This means even when there is no sunlight (like at night or on cloudy days), you can still have electricity

What are the main components of an off-grid solar system?

The main components are solar panels, a charge controller, an inverter, and a battery bank. Solar panels generate electricity, the charge controller manages power into the battery bank, the inverter converts DC to AC power for your home, and the batteries store excess power for use when needed.

How much does an off-grid solar system cost?

The cost of an off-grid solar system depends on your energy usage, local sunlight hours, and the specific equipment chosen. However, generally speaking, an off-grid system can range from $10,000 to $50,000 for a typical residential setup. It’s essential to have a proper system sizing and design to ensure cost-effectiveness.

Can an off-grid solar system power my entire home?

Yes, an off-grid solar system can power your entire home if it’s designed correctly. You need to calculate your total energy consumption, peak usage, and consider the worst sunlight conditions in your location. The system should be designed to meet all these requirements to ensure reliable power supply year-round.

What size solar system do I need for my home?

The size of the solar system you need depends on your energy consumption, sunlight hours, and the efficiency of the system. You’ll need to calculate your daily power consumption in kilowatt-hours and consider the peak sun hours in your location. A solar professional can help you make these calculations.

How do I maintain an off-grid solar system?

Regular maintenance for an off-grid system includes cleaning the solar panels, ensuring connections are secure, monitoring system performance, and checking the battery water level if you’re using lead-acid batteries. Most modern systems are designed to be relatively maintenance-free, but occasional check-ups are important for longevity.

What happens when the batteries are full?

When the batteries are fully charged, the charge controller prevents overcharging by limiting the power flowing into the batteries. Any additional power produced by the solar panels is essentially “wasted” unless you have a system in place to use or divert it (like a diversion load or a grid-tie functionality, if grid connection is available).

What is the lifespan of an off-grid solar system?

The lifespan of an off-grid solar system largely depends on the components. Solar panels can last 25-30 years or more, while the inverter can last 10-15 years. Batteries’ lifespan varies based on type and quality but can range from 5-15 years. Regular maintenance can extend the longevity of these components.

Can I upgrade my off-grid system in the future?

Yes, you can upgrade your off-grid system in the future. Whether you want to add more solar panels, batteries, or update to more efficient components, it’s possible to enhance your system’s capabilities over time. However, keep in mind that any changes should be compatible with the existing system for seamless integration.


Contact Us Today...

Call 406.551.3703 or Click Below to get a free, no-obligation consultation and discover how Montana Solar Products can help you harness the limitless power of the sun.