Marlborough, MA

System: Solar Electric (Photovoltaic)

Size: 575.5 kW

Type: SunPower

Unicorr Packaging Group partnered with SunBug Solar to install a 575 kilowatt (kW) solar system on the roof of their manufacturing plant in Marlborough. The system provides the facility with clean, renewable energy and an excellent return on investment.

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Unicorr manufactures corrugated containers, displays and retail packaging, and protective packaging.  Since 1946, Unicorr has distinguished itself by its integrity and its manufacturing, design and service excellence, being among the largest converters of corrugated products and protective packaging in the Northeast. Practicing lean thinking to promote efficiency, sustainability and the elimination of waste along with a customer-partnership philosophy, has led to Unicorr’s success and growth.  

Solar was the next logical step for Unicorr in their sustainability journey. They started reducing energy consumption and carbon emissions in 2010 and now use almost 20% less energy to produce the same number of boxes as they did in 2009. Solar presented a win-win solution that further improved the company’s environmental footprint while producing excellent returns and hedging against escalating utility costs.

“As we explored possibilities, we learned that a solar system can be a compelling investment. Given the sustainability benefits and financial returns from the project, we would have doubled the size of the array if roof load had allowed.”

Hap Perkins, Unicorr Packaging Group Chief Executive Officer and President

SunBug Solar

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Eastern MA 617-500-3938

Western MA 413-884-1000


Founded in 2009 and a Certified B Corporation since 2018, SunBug Solar has designed and installed over 2400 solar systems from Great Barrington to Cape Cod. We build all types of systems, ranging in size from 1kW to over 1MW, including residential, commercial, carports, and ground-mounts. Our integrated approach - from initial education through consultative design to quality installation and ongoing support - has earned SunBug the highest reputation for customer service and a host of satisfied residential and commercial customers.