Principal Solar to Build Largest Solar Project East of the Rockies

Project in Hope Mills, NC, will have capacity of 78.5 MW AC

Project scheduled to be operational by early 2016

Duke Energy to purchase power via a 15-year PPA

Total capital to be invested in the project will be $173 million

Principal Solar, Inc. (PSI; OTC Pink®: PSWW), a solar power company that is creating a utility-scale operation, announced today that it will build the largest solar facility east of the Rockies.

The project, located in Hope Mills, NC, with a capacity of 78.5 MW AC, will be the largest solar facility east of the Rockies. Total investment in the project is expected to be approximately $173 million. Duke Energy Progress, Inc. has signed a 15-year power purchase agreement (PPA) to buy energy from the project.

“This project launches Principal Solar as a leader in the solar utility sector, meeting the growing demand for zero-emission, cost efficient energy,” said Michael Gorton, chairman and CEO of PSI. “This high-quality project has a stable source of long-term revenue, and represents a major step forward for the U.S. solar industry. Principal Solar remains focused on rapid growth via the acquisition of shovel-ready solar projects, drawing on our industry expertise to be a long-term and repeat business partner for both solar project developers and traditional utilities.”

The Principal Solar team has more than 200 years of cumulative energy experience with leading utilities such as TXU Energy. Chief Executive Michael Gorton has significant energy industry expertise, and has founded successful businesses in healthcare, IT and telecommunications.

The Company’s Board of Directors includes established energy and industry executives such as Brenda Jackson, former Chief Customer Officer of Oncor, and Garrett Boone, founder of the Container Store. The Company’s Board of Advisors includes Hunter L. Hunt, President and CEO of Hunt Consolidated Power, and Erle Nye, former CEO of TXU.

PSI acquired the right to develop the project from Innovative Solar Systems, LLC of Asheville, North Carolina. The acquisition of the project is expected to close no later than June 3, 2015, with construction to be completed in early 2016.

About Principal Solar

Principal Solar, Inc. (PSI; OTC Pink®: PSWW), is a publicly traded solar power company executing a unique roll-up strategy to create a distributed solar utility. PSI concentrates its resources on the acquisition, finance, development and management of solar power generating facilities. The Principal Solar Institute, an educational organization created by Principal Solar, Inc., is dedicated to spreading solar knowledge to the critical stakeholders in the ongoing energy debate. Visit www.PrincipalSolar.com.

Forward Looking Statements

Statements in this press release that are not historical facts may be deemed to be “forward-looking statements.” Actual and anticipated future results may vary materially due to a variety of risks and uncertainties, which are detailed in Company reports filed with the Securities and Exchange Commission. All information set forth in this press release is current as of the date of this release and Principal Solar Inc. undertakes no duty or obligation to update this information.

MediaCPR for Principal Solar, Inc.Alexis Lignos, 201-641-1911 x [e-mail] RelationsMBS Value PartnersHugh Collins, [e-mail]