An Architecture for Energy Savings

Stephen WolffCisco Systems

Being green

• Smart grid– Generation

• Traditional (bulk, point)• Distributed

– Transmission/distribution• Smart load

– Commercial and public-sector– Residential

Buildings consume 50% of world’s energy

Sources: BOMA 2006, EIA 2006, AIA 2006

Buildings

50%

Manufacturing

25%

Transportation

25%

Office Building Loads

Source: UK Energy Efficiency Best Practice Program; Energy Consumption Guide 19: Energy Use in Offices

“It takes twice as much energy to remove the heat generated

… as it takes to run the equipment.”UK Department of the Environment, Good Practice Guide 118

IT Equipment25%

Heating, Cooling, and Ventilation58%

Lighting11%

Other6%

Cisco EnergyWise

• Individual elements of an IT installation can be controlled individually, but a systems approach is likely to be more productive

• IT devices are interconnected by a network, so it is not unreasonable to embed system-wide energy-control intelligence into the network elements themselves

• Cisco EnergyWise comprises additions to IOS and the CLI that enable energy management

Flexibility

• Devices –– are assigned to domains– have names and roles– may have keywords stored in them– may have an importance (0-100) assigned to them

• EnergyWise commands can use these attributes

Enhanced Building ControlPhase 3

Building Automation ControlPartner Building Power Mgmt

Enhanced Management (SDK+)

Cisco EnergyWise Phased Development

IT ControlPhase 2

Non-PoE Devices (PCs)Partner IT Power MgmtEnhanced Management

Network ControlPhase 1

PoE DevicesPower Levels, Policies

Discovery, Mgmt, Reporting

EnergyWise Phase 1

• Management of PoE devices– Wireless APs– IP phones

• Open API and SDK available• Cisco Developer Network

EnergyWise Phase 2

• Control of non-PoE devices with SNMP• ‘Orchestrator’ module to manage PCs• Wake-on-LAN feature for PCs connected

through IP phones

Converge IT and Facility Networks

Building Services and TechnologiesNon-IP

Tenant Services and TechnologiesIP Based

High-Speed Internet Lighting

Wireless Elevators

VPN Ambient heat load

IP Telephony HVAC-Sensors

Audio & Video Conferencing Fire

Visitor Management Video surveillance

Interactive Media Access control

Digital Signage Energy

EnergyWise Phase 3

• ‘Mediator’ to enable management of non-IP building systems

Thank you!