The ESSIE-Logo System, is the patented wearable portable solar energy generator that allows for everyday items to become personal power sources. Compatible with virtually all handheld electronics including cell phones, laptop computers, and camping equipment, the ESSIE-Logo System also includes a removable battery pack to store power for when it is most needed, even at night.

Tough, waterproof solar panels are embedded in a lightweight backpack or convenient accessory pack, or use the interchangeable solar panels in your own items. These panels use high-efficiency mono-cristalline cells to produce four watts of power in only a single hour in the sun. That translates to three full hours of iPod playtime or 1.5 hours of cell phone use. The battery pack stores 15 watts of power from five hours in the direct sun, powerful enough to power a laptop for up to four hours.

An array of standard adapters is included with every ESSIE-Logo System so you can always access power when you need it.

Inventor David M. Wilson’s vision for the ESSIE-Logo System, which shares a name with his mother in honor of her tireless energy as the family caregiver, is born of necessity. As our man-made world races to the next innovation, dragging us along for the ride, many people are finding it increasingly important to reconnect with the natural environment. Until now, being present in your modern life and the natural world were mutually exclusive. The ESSIE-Logo System allows you to unplug, and plug in.

Product Line


  • “I don’t really have to carry around textbooks anymore, like I used to in high school,” All but two of his classes — Spanish history and financial accounting — had moved the coursework online." Mr. Cho, a sophomore
  • “I think there’s room in the market for something new,” (who is developing a new degree in outdoor product design to address a perceived shortfall of fresh talent in the field). “There’s definitely room for innovation.” Lindsey Shirley, a clothing and textiles expert at Utah State University
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  • “People want to stay more connected socially, even in the outdoors,” “Even if they’re in the back country, they’re using solar panels…" John Sears, vice president for design and development at the backpack maker
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Our Team

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    David M. Wilson is the founder of Global Resource Management Inc. (GRMI) and their patent pending solar device.

    David Wilson

    Founder, President and CEO

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    It is our mission to continue to Essie System  and  provide a 100% customer satisfaction rate.

    Jeff Samuels

    CFO and Marketing

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    We are committed to dramatically facilitate WSD Developments paradigms so that we may continue to enthusiastically simplify modern web development sources to meet our customer's needs.

    Everett Jackson