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2019 Top Solar Contractors List

OnSite Energy is the No. 1 solar installer in Montana and No. 302 overall!
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Keeping Montana on the map!
Keeping Montana on the map!

Tesla Powerwall Installation

2019-06-05
We're excited to share that we recently completed our first Tesla Powerwall installation! As a Certified Installer, we now offer a customized solar-plus-battery solution as well as car chargers.See Details
Tesla Powerwall Installation

Residential

2019
Bozeman, MT
Tesla Powerwall
Tesla Powerwall

Tesla Powerwall Installation

2019-06-05
We're excited to share that we recently completed our first Tesla Powerwall installation! As a Certified Installer, we now offer a customized solar-plus-battery solution as well as car chargers.
See Details

MSU's Norm Asbjornson Hall

2019-06-04
This 216 kW solar array on Montana State University's new Norm Asbjornson College of Engineering building is the largest rooftop solar array in Montana!See Details
MSU's Norm Asbjornson Hall


2018
Bozeman, MT
The largest rooftop solar installation in the state
The largest rooftop solar installation in the state

MSU's Norm Asbjornson Hall

2019-06-04
This 216 kW solar array on Montana State University's new Norm Asbjornson College of Engineering building is the largest rooftop solar array in Montana!
See Details

Eagle Mount

2019-05-16
In early spring of 2019 we installed a 22 kW solar array at Eagle Mount in Bozeman. The facility had a preexisting 5 kW solar array installed in 2012 that we adapted into the overall design of the now 27 kW system.See Details
Eagle Mount

Commercial

2019
Bozeman, MT
Solar array on the Equestrian Center arena
Solar array on the Equestrian Center arena

Eagle Mount

2019-05-16
In early spring of 2019 we installed a 22 kW solar array at Eagle Mount in Bozeman. The facility had a preexisting 5 kW solar array installed in 2012 that we adapted into the overall design of the now 27 kW system.
See Details

NABCEP Certified Installers at OnSite Energy

When we say we're the most qualified solar contractor in the region, we mean it! Learn more about the NABCEP Certification and why it's so important in the solar industry.
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North American Board of Certified Energy Practitioners
North American Board of Certified Energy Practitioners

Happy BCorp Month!

We believe in a better way of doing business. That's why we're proud to be a BCorp: companies that meet the highest standards of social and environmental impact.
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#BtheChange!
#BtheChange!

Larson Residence

2019-01-23
By taking advantage of the east, west, and south-facing roof aspects, the Larson family will be able to offset over 100% of their electricity use.See Details
Larson Residence

Residential

2018
Bozeman, MT
East-facing array
East-facing array

Larson Residence

2019-01-23
By taking advantage of the east, west, and south-facing roof aspects, the Larson family will be able to offset over 100% of their electricity use.
See Details

Vote Every Day

Voting is one of the most important acts we can do, but it doesn't have to be limited to Election Day. By supporting B Corp brands that make their mission to balance profit with purpose, you can vote for your values every day.
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Every dollar you spend is a vote
Every dollar you spend is a vote

OnSite Energy installs over one megawatt of solar in 2018!

We are excited to announce that in the 2018 calendar year we installed just over one megawatt of solar electricity! This is a landmark accomplishment for a Montana based solar company and almost twice as much as we installed last year.
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The OnSite Energy crew celebrating the holidays and the one megawatt benchmark
The OnSite Energy crew celebrating the holidays and the one megawatt benchmark

Scully Residence

2018-11-29
This sleek 28.8 kW system fits the garage roof so well that you may not even notice it.See Details
Scully Residence

Residential

2018
Bozeman, MT
The all-black modules blend in so well with the roof you can hardly see them!
The all-black modules blend in so well with the roof you can hardly see them!

Scully Residence

2018-11-29
This sleek 28.8 kW system fits the garage roof so well that you may not even notice it.
See Details
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1515 N. Rouse Ave
Bozeman, MT 59715
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