Mountain Sun Brewery
  • Mountain Sun Brewery
    Mountain Sun Brewery

    The Mountain Sun Solar Array

    The popular Mountain Sun Pub & Brewery partnered with IPS to install a 9.856 kW solar power system on the roof of its historic downtown location.

    Project Highlights

    Location: Boulder, Colorado

    System Size: 9.856 kW

    Est. Energy Production: 17,151 kWh/yr

    Project Type: Commercial Solar

    Client: Mountain Sun Pub & Brewery


The popular Mountain Sun Pub & Brewery installed a solar power system at its historic Pearl Street location in Boulder in October 2010. The 9.856 kW solar PV system covers an area of approximately 1,000 square feet and is capable of producing more than 12,000 kilowatt-hours of energy per year. The array itself is comprised of forty-four, American-made Sharp solar modules, each capable of generating 240 Watts of continuous power under optimal conditions. Patrons and staff of the Mountain Sun Pub & Brewery are able to view real-time systems performance and energy consumption data via a wireless monitoring system located inside the establishment.

The Mountain Sun’s solar PV system will significantly reduce current electric costs, and serve as a hedge against future electric cost increases. Additionally, according to Environmental Protection Agency (EPA) calculators, the electricity produced by the solar PV system will offset 256 tons of CO2 over 25 years, which is roughly equivalent to 13,000 pounds of coal. The price of their system was more than compensated for by a $5.09/watt cumulative offset from a combination of upfront rebates, tax credits, and accelerated depreciation.

The Mountain Sun system is one of several commercial solar power systems installed by Independent Power Systems on businesses in the downtown Boulder, Colorado area, including 1505 Pearl, 1155 Canyon, 1320 Pearl, 1526 Spruce, and the Boulder County Courthouse, among others.

Prior to the brewery installation, the owner had Independent Power Systems install a PV system on his residence.

"We at Independent Power Systems are proud to have been chosen to design and install the solar PV system for the Mountain Sun Pub and Brewery. We recognize that this pioneering business and historical landmark represent a special place in the minds of Boulderites, and we intend to deliver a solar PV system worthy of both."


Mountain Sun Brewery

Solar Made Simple

Project Photos

Why Choose IPS?

  • Commercial


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  • We Don't Do "Cookie Cutter" Systems

    We will work with you to build a custom system that will give you the most value and offer the most savings for your own personal situation.

  • Wide Range of Battery Options

    We have the widest range of battery options in the state of Colorado! From AGM to SunPower and Blue Ion and more! We offer safe, long-lasting options that get the job done!

  • Established Reputation

    IPS is one of the oldest solar companies in both Colorado and Montana. We focus on quality workmanship and will provide you with options to fit your budget and your need!

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