DC MICROGRIDS: A DIRECT ROUTE TO ENERGY EFFICIENCY John H. Jahshan, Director of Engineering Nextek Power Systems IEEE EnergyTech 2012 Conference Thursday, May

Zero Energy Buildings (ZEB) Buildings that produce as much energy as they use What’s likely to change in the approach to design/build? 1.Integrated design and operations planning 2.Site renewable energy strategies get maxed out 3.Energy Storage technology will allow Grid independence breakthroughs 4.System Intelligence - More control, monitoring, verification of everything 2030: All new commercial buildings 2040: 50% of commercial building stock 2050: All commercial buildings Source: EISA 2007, Title 4, Subtitle B, Section 422c EMerge Alliance Corp - ©

Sensor & Controls HVAC Actuators Electronic Lighting ENERGY SOURCES ELECTRO-ACTIVE DEVICES AC/DC Site Generation DC Campus Fuel Cells AC Line Power DC Wind Power DC Photovoltaic Security & Safety AV/IT Devices OPPORTUNITY: Up to 30% less energy, 15% less capital, 200% plus more reliable Source: Data & Telecom Centers SOLUTION: A simplified AC/DC hybrid coupled power network Coupled AC/DC Power Sources▲ DC Power Distribution Management▼ Wireless Controls BACnetTCP/IP EMerge Alliance Corp - ©

Too Many Inefficient Power Conversions “Taking the Long Way Around” AC Grid DC sources DC storage AC DC AC DC / Semiconductor Based Loads AC DC AC DC AC DC AC DC AC DC AC

Direct Coupling ® / DC Microgrid SIMPLE EFFICIENT DIRECT AC Grid DC sources DC storage DC DC / Semiconductor Based Loads AC DC Lower Operating Expense Safer Higher Efficiency Fewer Components More Reliable Less Real Estate Reduced Carbon Footprint

 REDUCED ENERGY COSTS  SECURITY AGAINST HIGHER UTILITY COSTS  MORE EFFICIENT ENERGY USE (10% TO 40%)  MORE RELIABLE SERVICE  SAFER POWER AT 24V  HIGHLY SCALABLE SYSTEM DESIGNS  FLEXIBLE ‘PLUG & PLAY’ COMPONENTS  REDUCED FUTURE RENOVATION COSTS  MEASURED 50% REDUCTION IN INSTALLATION, MOVES AND CHANGES BOTTOM LINE… DO MORE WITH YOUR ENERGY ® Direct Coupling® DC Microgrid Drivers & Benefits

Founding & Governing Member of The EMerge Alliance ® “An open industry association developing standards leading to the rapid adoption of DC power distribution in commercial buildings”.

The EMerge Alliance ® Nextek – Governing Member Governing Members

The EMerge Alliance ® System 24VDC – Class 2 Wiring – Energized Ceiling

Nextek Power Systems Products Power Servers 24V PSM V PSM-1600 ALT 380V PSM-1600 MPPT DC Ballasts Popular lamp types including T5, T8 & CFL High Efficiency 24V & 48V styles 24V Emergency Ballast Dimmable DC Fans-Nextek Fanworks 12/24V DC Powered ceiling fans Vari-Cyclone and Vari-Fan styles Speed Controller available

“I’d put my money on sun and solar energy. What a source of power! I hope we don’t have to wait until oil and coal run out before we tackle that." ~Thomas Edison, 1880’s Thomas Edison was right!

For more information: John H. Jahshan Now Let’s Hear From The Rest of the Panel…