Reinventing Building Power

A Non-profit Alliance Creating Standards for use of Hybrid AC/DC Microgrid Power in Buildings

EMerge Alliance. All rights reserved.

An

EMerging

Perspective on the

Use of LVDC

Power

INTERCONNECTED MICROGRIDSTHE ENERNET

• WHY? • WHAT? • HOW?

WE’RE AT A TIME OF INCREASING CHALLENGES TO OUR POWER SYSTEMS: FROM POINTS OF GENERATION - TO

POINTS OF USE - AND EVERYTHING IN BETWEEN

Virtues1

2

3

4 Self Organizing

Presumption of Access Equality of Each Entity

Bottom-Up Public Structure

Strength of ‘Weak’ Transactive Cooperation

Self Healing = Resilient

Microgrids can capture the key virtues of the Internet using a similar topology

Microgrids will create a massively distributed mesh network of system sources, storage and loads

1970 Today

Internet 50,000 7,500,000,000

Smart Grid 37,000 500,000

Enernet 37,000 1,700,500,000

Estimated # of Interconnected Nodes

Residences:• Personal Power System• Operate on or off grid(s)• Under the owner’s total control• Conducts power transactions by choice• Basic infrastructure node in the Enernet

A Residential Microgrid Operates Independently or in Cooperation with Other Grids

Includes:• Site Based Energy Production• Electricity Storage• Co-located Loads – Appliances, Devices• Intergrid Connection

A Residential Microgrid Operates Independently or in Cooperation with Other Grids

Home Microgrids can be Ener-connectedinto Community Microgrids

Community Microgrid

Commercial “Building Level” Microgrids are Similar Commercial:• Corporate Power System• Operate on or off grid(s)• Under the owner’s total control• Conducts power transactions by choice• Basic infrastructure node in the Enernet

Includes:• Site Based Energy Harvesting/Production• Electricity Storage• Co-located Loads – Appliances, Devices• Intergrid Connection

Power Storage & Control

Office & Occupied Space

Factory or Warehouse

Data Center

Commercial “Building Level” Microgrids are Similar

Commercial Building Microgrids can be Ener-connected into Commercial Campus Microgrids

Commercial Campus

Microgrid

Community & Commercial Microgrids can be Ener-connected with Utility-Scale Microgrids

Wind Farm

Solar Farm

Sub-station

Sub-station

Commercial Campus

Microgrid

Community Microgrids

Peaking Power Plant

Utility Microgrids can be Ener-connected into the ‘Smart-Grid’

Base Load Power Plant

Base Load Power Plant

Base Load Power Plant

Base Load Power Plant

Utility Microgrids

Utility Microgrids

Utility Microgrids

Utility Microgrids

75+ Test, Beta, & Production SitesCommercial, Residential, Data Center Applications

NextHomeCampion HomesDetroit. MI

New Construction Bldg – 4,400 m2

• ABB Power Distribution– In: 16KV AC– Out: 1MW @ 380Vdc– Battery Backup: 10 mins– Backup Generation

• 1,100m2 of 3,300m2 Vdc

• HP 2U, Blades & Storage Servers

• Demonstrated Benefits

– 10%+ Better Energy Efficiency, 1.18 PUE

– 15% Lower Capital Cost

– 25% Smaller Footprint

– 20% Lower Installation Costs

Rectifier

Battery Storage

Datacenter Servers

16KVac

3Ø

380Vdc

Photos courtesy of ABB* and HP*

380Vdc Data CenterZurich, Switzerland

Deep Renovation of existing 600,000

SF 2 Floor Bldg.• 380 Volt dc bus

architecture

• 50,000sf of 380Vdc DC Energized Racks

• 24v DC LED Lighting

• Wireless Lighting PWM/IPv6 Controls

• Control Phase I Early 2015

• Scalable design saved 50% CapEx.

AC/DC Hybrid Data Center DemoPrinceton, New Jersey

DC Lighting + Energized Ceiling

Grid

• Full energized top and bottom rails of suspended ceiling

• 10,000sf of DC Lighting

• Traditional design / bid / build process

• Installation time was reduced to 50% vs. Traditional ac system

LVDC Nanogrid - LightingMiddletown, Pennsylvania USA

3 Floors of Class A Office Space

• 14th Floor:T8 Fluorescent – No Controls

• 15th Floor:LED Retro Tube – No controls

• 16th Floor:LED Retro Tube – W SKY controls

• Dramatic Energy Savings75%!

LVDC Nanogrid - LightingDetroit, Michigan

Deep Renovation of 7 Story Office

Bldg.• 110,000sf of 24v DC

LED Lighting

• 70,000sf of DC Energized Ceiling

• Wireless Lighting Control

• Direct Coupled®

Solar

• Completed Late 2014

Solar Powered LVDC Lighting NanogridDearborn, Michigan

DC FLEXZONE CEILING, LEDLIGHTING & OCCUPANCY

SENSORS

DC PHOTOVOLTAICS

DIFFUSED DAYLIGHTING

DC PHOTOVOLTAICS

NATIVE PLANTS,

IRRIGATION &

GROUNDWATER

INFILTRATION

PNC Financial Services Group Inc. announced the debut of its new net-zero energy bank branch during first quarter 2013 in Fort Lauderdale, Fla.

PNC branch exceeds LEED Platinum certification and is PNC’s most energyefficient building, using 50 percent less energy than a typical branch.

VEGETATIVE WALL

ENERGY RECOVERY UNIT

Whole Building DC MicrogridsFt. Lauderdale, Florida

Zero Building Designed 10, 000 SF

• Low Voltage dc LED Fixtures

• Power directly from on-site solar

• 50% less Energy than equivalent Branch Bank

• Net Zero Building

DC Microgrid Click & Brick Integration Cold Spring Kentucky

Building/Campus AC/DC MicrogridsDetroit, Michigan

Greenbuild 2015Solar Power International 2016

Washington DCCONVENTION CENTER

A part of the HOW:

E.J. CURTIS ASSOCIATES, INC.

Nicholson & Sun LLC

Connecting the Dots…

Standards Organizations We Work with to Advance DC Microgrid Technology / Use

Standards Activity

• Occupied Space

• Data Center & Central Office

• Task Level (desktop & plug loads)

• Whole Building Microgrids

• Residential & Light Commercial

• Retail/Specialty

• Bldg. Services (HVAC) / Outdoor/EV ChargingPending

Forming

New in 2015

Draft

Draft

Issued

Issued

System Application Standards

Definition:

The Enernet:Flexible, clean, efficient, resilient, affordable

and sustainable energy infrastructure

Enernet" refers to the global power system that -- (i) is logically linked together by a

globally unique intergrid connection scheme applied at the points of common

connection between grids; (ii) is able to support transactionally based flow control

protocols based on the principles of free-market trade to achieve a balance of the

supply and demand for electricity; and (iii) provides, uses or makes accessible, either

publicly or privately, high level services included with the electric power infrastructure

described herein.

www.EMergeAlliance.org

Thank You !