Green Plug
Green Plug develops a chip that enables real-time collaboration between electronic devices and their power sources, using the Green Plug Universal Power Protocol (UPP). Green Plug is the developer of Green Talk - a digital protocol for real-time communication between devices that require power and their power sources. This technology allows for the charging of multiple DC powered devices with differing power requirements from a single power supply.

During the demo, Green Plug CEO Frank Paniagua showed a 3-port power 95 watts strip that could charge on the same port either an HP laptop that required 19V or a 9.5V digital picture frame.

Another benefit using the Green Plug strip is that when the device is fully charged, the strip shuts off the port, thus avoiding wasting power. Green Plug sells the chip but give away the firmware that contains UPP to OEMs. Hopefully, that would mean the end of this jungle of power supplies.

"Think about when you are at Starbucks. Or outside in the lobby. Or at the airport. What's the most coveted seat in the house? The one next to the power. Right?", said Paniagua.
"Many of us have heard the term universal power supply. Well, I truly believe this is a misnomer. A universal power supply today refers to a universal input voltage (AC) [...] But Green Talk allows power supply to be also universal at the DC output voltage", added CTO Pabon

Celsias Project
Celsias launched last year as a blog to fight global warming that has grown in traffic by 65% each month. They are launching “Celsias Project” here at DEMO. It allows participants to create a project and become a project leaders, so people can join and support it. Celsias Project offers a set of online tools to help the project leaders and the projects supporters to raise funds and reach their goals.