Smart Grid City:A blueprint for a connected, intelligent grid community

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The grid today

Utilities committed to proving safe, reliable power. Must provide quality service with an aging

infrastructure Supplying energy in a carbon constrained world

Working with non-integrated systems and processes

Smart technologies can provide solutions to modern grid challenges.

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“Analog” Grid

Centuries-old design

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“Smart” Grid

Digital intelligence infused throughout the grid

Energy storage devices

Local power generation

Digital sensors and controls

Real-time data

Real-time price signals

Broadband communications

Smart Homes

Smart Buildings

Electric transportation

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Drivers for change Grid reliability

Aging assets, heightened load

Environment: Global climate concerns State mandates for green power

Energy Security: Homeland security Dependence on foreign oil

Customer Choices: Growing needs and expectations Desire for greater flexibility and options

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The grid of tomorrow

Over the next 10 to 20 years, our industry can evolve more rapidly than ever before.

It’s more than just smart meters!DISTRIBUTED RESOURCES POWER GRID

MANAGEMENTCUSTOMER POWER

MANAGEMENT

Distributed generation interconnectionSolarWindFuel cellsBatteries

Energy storage

Real-time monitoring

Transmission/ distribution automation

Demand response (adjusting to grid conditions)

Broadband over power lines (BPL)

Smart meters

Smart buildings & equipment

Smart appliances

Plug-in hybrid electric vehicles (PHEVs)

Voltage regulation/ Pre-set energy use

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Moving beyond the traditional…The Smart Grid will: Be more reliable. Be self-healing and self-monitoring. Be more secure. Be cleaner and greener. Support widespread distributed generation. Help customers better control energy use in their

homes and businesses. Achieve lower throughput, thus lowering prices.

Xcel Energy is setting a Smart Grid benchmark among North American utilities.

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Xcel Energy’s strategy

Smart Grid is an end-to-end solutionAligned with environmental goalsConsumer-focused approachService-based business modelJoint R&D partner investments

Smart Grid Consortium formed in 2007

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Accenture: IT and business modeling

Current Group: High-speed communications

Schweitzer Engineering Labs: Substation technology

Ventyx: Workflow management software

Xcel Energy

imagine. inspire. innovate.

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Smart Grid City - Boulder, Colo. “An international showcase of smart grid

possibilities… a comprehensive demonstration of an intelligent grid

community”

Test technology Integrate smart grid

portfolio of projects Prove benefits

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Smart Grid City Involves the entire energy pathway from the power source to the home

and all points in between Rich in IT High-speed, real-time, two-way communications Sensors enabling rapid diagnosis and corrections Dispatched distributed generation (PHEVs, wind, solar) Energy storage In-home energy controls Automated home energy use

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Boulder’s Key Strengths Ideal size (50,000 customers/meters)

Ideal geographic location (easy access to needed grid components)

Ideal Smart Grid consumers: Web-savvy, early adopters Environmentally aware

Collaborative opportunities with: University of Colorado National Center for Atmospheric Research National Institute of Standards and Technology City leaders

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Smart Grid City projects Power Production

Energy storage Distributed generation

Utility Operations Smart Outage Management Smart Distribution Assets Smart Substations

Consumer Smart House Plug-in Hybrid Electric

Vehicles

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Smart Grid City projects

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Energy Storage

Scenario: Wind energy is stored in a

battery for use when needed.

Consumers can use wind power when they want—not just when the wind is blowing.

Energy storage devices can be tapped whenever demand is high.

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Smart SubstationScenario:

Digital intelligence gives substation operators remote control of facilities.

Allows faster adjustments to conditionsPrevents blackouts, makes for faster

recoveryMore flexibility to re-route powerMonitors help keep facilities and sites

secure

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Smart Distribution AssetsScenario: A smart meter detects an isolated outage in

a residential neighborhood.

The utility pings the meter and is able to send the right crew, with the right tools, to the right location to turn power back on quickly, OR

Can remotely re-connect power Faster restoration time and fewer outage

minutes

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Smart Outage Management

Scenario:A customer’s power goes out at their home; but they don’t need to call the utility. Its already located the cause of the outage.

Sensors & monitors embedded throughout the grid detect abnormalities/disruptions

Real-time data leads to rapid diagnosis and correction

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Smart HouseScenario: Home appliances contain onboard

intelligence that receives signals from Xcel Energy and can reduce demand when the grid is under stress.

Consumers automatically pre-program appliances to turn on when prices are lower.

Creates options for managing bills and energy consumption habits

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Smart House

Plug-in hybrid electric cars

Added green power sources

Smart thermostats, appliances and in-home control devices

Real-time and green pricing Signals

High-speed, networked connections

Customer interaction with utility

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Plug-in Hybrid EVs (PHEV)Scenario: A PHEV is capable of both charging from

and discharging power to the grid.

Utilities may pay consumers to “borrow” PHEV energy storage in times of need

PHEVs can also serve as back-up generation for homeowners

Utilities can offer incentives to motivate charging strategies with environmental benefits

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The Smart Grid offers multiple benefits for consumers, environmentalists, and the

energy industry as a whole…

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Smart Grid Benefits

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Investment

Approximately $60 to $100 million

Cost is offset by joint funding from partners and contributions of: Utility hardware IT hardware Software Labor resources

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Timeline

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In Conclusion It won’t happen all at once:

Smart Grid will be an evolution with long-term implications.

Next steps: collaborate with customers, shareholders and regulators to put scope and final designs in place.

Start up costs involved; but savings expected in the long run.

Solid focus will remain on customer choice.