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DC MICROGRIDS: A DIRECT ROUTE TO ENERGY EFFICIENCY John H. Jahshan, Director of Engineering Nextek Power Systems IEEE EnergyTech 2012 Conference Thursday, May 31 2012
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DC MICROGRIDS: A DIRECT ROUTE TO ENERGY
EFFICIENCY
John H. Jahshan, Director of EngineeringNextek Power Systems
IEEE EnergyTech 2012 ConferenceThursday, May 31 2012
Zero Energy Buildings (ZEB)Buildings that produce as much energy as
they useWhat’s likely to change in the approach to design/build?
1.Integrated design and operations planning2.Site renewable energy strategies get maxed out3.Energy Storage technology will allow Grid
independence breakthroughs4.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 - ©2009-2010
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
CoupledAC/DC Power
Sources▲
DC Power DistributionManagement
▼Wireless ControlsBACnetTCP/IP
EMerge Alliance Corp - ©2009-2010
Too Many Inefficient Power Conversions“Taking the Long Way Around”
AC Grid
DC sources
DC storage
AC
DC
DC
AC
DC / SemiconductorBased Loads
ACDC
ACDC
ACDC
ACDC
AC
DC
AC
Direct Coupling® / DC Microgrid SIMPLE EFFICIENT DIRECT
AC GridDC sources
DC storage
DC
DC
DC / SemiconductorBased Loads
ACDC
DC
DC
DC
DC
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 MemberGoverning Members
The EMerge Alliance® System24VDC – Class 2 Wiring – Energized
Ceiling
Nextek Power Systems Products
Power Servers• 24V PSM-1600• 24V 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
www.nextekpower.com
Now Let’s Hear From The Rest of the Panel…
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