SuperTruck 3 Further Validates Principal Solar's Heavy Vehicle Electrification Subsidiary Partnership with eTruck Transportation

$162 Million Department of Energy Program to Fund Projects to Electrify Medium- and Heavy-Duty Freight Trucks, Fund Heavy Electric Vehicle Charging Technologies and Infrastructure

Principal Solar, Inc. (OTC Pink: PSWW) ("Principal" or "the Company"), a strategic investor in and acquirer of technologies that support next-generation opportunities in traditional, renewable, and clean energy sectors as well as an investor in and acquirer and operator of undervalued petroleum-producing properties, today stated its intention to participate in the Department of Energy's SuperTruck 3 program by application, via its subsidiary partnership with vehicle conversion company eTruck Transportation ("eTruck"). The program announced on April 15, 2021, provides $162 million in opportunities aimed at electrifying freight trucking, along with efforts to expand infrastructure and lower emissions.

"We see this as further validation of our decisions to create NexTeal, Principal's EV-focused operating company, and to form our heavy vehicle electrification subsidiary partnership with eTruck Transportation," said K. Bryce "Rick" Toussaint, CPA, MBA, Chairman and CEO of PSWW. "SuperTruck 3 is a funding opportunity that feels tailor-made for NexTeal and our new subsidiary partnership. We plan to apply to participate in the program."

According to the Department of Energy's announcement, the program seeks to fund solutions that will mitigate the largest contributors to the transportation sector's greenhouse gas emissions, of which medium- and heavy-duty trucks are responsible for nearly a quarter.

The Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) launched the original SuperTruck initiatives in 2009 with the goal of improving heavy freight truck efficiency by 50%. SuperTruck 2, launched in 2016, sought to double the efficiency of 18-wheeler (class 8) trucks. SuperTruck 3's funding is focused on even higher efficiency via a range of approaches to electrification.

The complete announcement from the Department of Energy regarding the program may be found here: https://www.energy.gov/articles/doe-announces-162-million-decarbonize-cars-and-trucks.

As verified in past Company declarations, the eTruck association is an illustration of Principal Solar's new multi-layered go-ahead procedure of building accretive development by putting resources into as well as securing creative, cutting edge advancements inside the environmentally friendly power, electric vehicle, and "green" hydrocarbon catch spaces. Chief's methodology at that point upholds its innovation designers and new business supervisory crews with development capital raised explicitly for the auxiliary by means of public business sectors. Chief likewise gives the active ability, labor, techniques, and deals and showcasing assets important to prepare these organizations and advancements with the most extreme potential to flourish - and the greatest potential to convey returns for all partners.

About Principal Solar

Principal Solar is a strategic investor in and acquirer of technologies that support next-generation opportunities in traditional, renewable, and clean energy sectors as well as an acquirer and operator of undervalued petroleum-producing properties.

For further information, please visit the Company's website at www.pswwenergy.com.

*US$803 billion by 2027. Source: https://www.statista.com/statistics/271537/worldwide-revenue-from-electric-vehicles-since-2010/

**Source: https://www.psmarketresearch.com/market-analysis/us-electric-truck-market

***Source: https://www.trendsmarketresearch.com/report/analysis/MMR/global-electric-heavy-vehicle-market

Principal Solar Contact

K. Bryce "Rick" Toussaint, CPA, MBA
Chairman and Chief Executive Officer
kt@pswwenergy.com
214.885.0032