Day4 Energy Appoints Experienced Multinational Operations Leader as COO

Neil Lang to Guide Supply Chain Strategies for Advanced Solar Module Manufacturer

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BURNABY, BC - June 23, 2008 - Day4 Energy Inc. (TSX: DFE), a leading manufacturer of high performance, cost-effective solar electric modules, today announced that Neil Lang has joined as chief operating officer. Lang brings many years of experience managing operations at high-growth multinational companies. In his new role at Day4 Energy, Lang will guide development and implementation of operational strategy in support of the company's aggressive expansion targets.

"At Day4 Energy, we adhere to the belief that a company is a direct reflection of its people, and we are proud to add Neil to our growing team of some of the best and brightest from around the world," said Dr. John MacDonald, CEO of Day4 Energy. "His success optimizing supply chain operations in fast growth environments will serve Day4 Energy well as we continue to add manufacturing capacity and deliver quality product to our expanding international customer and partner base."

As COO Lang is responsible for managing supply chain, manufacturing and internal operations for Day4 Energy, which employs its proprietary Day4 Electrode construction approach to produce solar modules with improved performance, lifetime and aesthetic appearance. The company is currently scaling its manufacturing capacity to meet demand from new and existing utility, commercial and residential customers in Europe, North America and Asia.

"Within the rapidly expanding and increasingly competitive solar energy market, Day4 Energy's technology differentiators position the company well to claim and maintain leadership," said Neil Lang. "I'm looking forward to applying my own experience in guiding operations for high-growth companies to this new role at Day4 Energy, a company whose early demonstrated accomplishments indicate much success to come."

Prior to joining Day4 Energy, Lang served for five years as operations director for Hain Celestial, where he directed all aspects of North American operations for a $100 million division of the natural and organic food company. Lang served previously as supply chain director for SISU Enterprises, where he helped drive growth rates that placed the Canadian neutraceutical company among the highest in its sector. Lang also spent six years working in the UK managing more than 200 staff and a $15 million budget for Unilever Plc, one of the world' s leading suppliers of branded consumer goods. Lang holds both Masters and Bachelors degrees in Manufacturing Engineering from Cambridge University and is a chartered engineer registered in the UK.

About Day4 Energy

Headquartered near Vancouver, British Columbia, Day4 Energy Inc. designs, manufactures and sells photovoltaic (PV) modules based on its patented Day4 Electrode technology, a proprietary method of contacting and interconnecting solar cells. The Day4 Electrode produces PV panels of high power density, increased lifetime and uncompromised aesthetic appearance. The advanced solar module construction method increases the performance of conventional silicon panels and enables the next-generation of PV innovation. Day4 partners with the industry's leading PV cell producers to deliver IEC and UL certified commercial and residential solar products to customers throughout Europe and North America. For more information, visit: www.day4energy.com

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Press Contact:

Rosalind Jackson

Antenna Group (for Day4 Energy)

415-977-1923

rosalind@antennagroup.com

Investor Contact:

Cory Pala

416-657-2400

CPala@Day4Energy.com