WAL-MART STORES, INC. DEMAND RESPONSE

Wal-Mart in New York Supercenters45 Discount Stores45 Neighborhood Markets 0 Sam’s Clubs17 Distribution Centers4

Wal-Mart We operate more than 6,900 stores in 14 countries and serve more than 176 million customers around the globe each week. 1,040 Wal-Mart Discount Stores 2,326 Supercenters 118 Neighborhood Markets 2,903 Wal-Mart International Facilities 584 Sam’s Clubs

Annual Energy Expense for 2007 in the U.S. alone: $2.0 Billion

Environmental Goals To be supplied by 100% renewable energy To create zero waste To sell products that sustain our resources and the environment

Wal-Mart Environmental Commitments Aggressively investing approximately $500 million annually in sustainable technologies and innovations. Reducing greenhouse gases at our existing stores, Sam’s Clubs, and Distribution Centers around the world by 20% by Designing and opening a viable prototype store that is percent more efficient and will produce up to 30 percent fewer greenhouse gas emissions by 2009.

Wal-Mart Environmental Commitments Sharing our learning with the world, including our competitors. Pursue regulatory and policy changes that will create incentives for utilities to invest in energy efficiency, to use low or no greenhouse gas sources of electricity, and to reduce barriers to integrating these sources into the power grid.

Wal-Mart Environmental Commitments Initiate a program in the U.S. that will show preference to suppliers who set their own goals and aggressively reduce their own emissions.

Wal-Mart’s Profile Most new facilities are.75 MW to 1.3 MW

Energy Efficiency Daylighting Electronic Dimming Balasts Computer Controlled Daylight Sensors All new facilities utilize T-8 fluorescent lamps New construction uses LED lighting in all internally illuminated exterior signage

Energy Efficiency Occupancy sensors in non-sales areas of new stores High efficiency HVAC systems White membrane roofs are used in most areas of the country 70% of hot water needs for Supercenters, Sam’s Clubs, and Neighborhood Markets are met through a heat reclaim system We actively dehumidify our buildings

Energy Efficiency Energy Management System

Demand Response Project Types Formal demand response programs at the state, utility, and ISO level Voluntary demand response to support states, regions, and utilities Experimentation with back-up generators

Demand Response programs are being set up all across the U.S. To date we have assisted with the stability of the grid through curtailment in the following states: Arkansas California Connecticut Illinois Kansas Missouri Texas

Demand Response We are preparing to implement Demand Response in: New York Tennessee Maine Delaware Massachusetts New Hampshire Pennsylvania Wisconsin

2006 Voluntary Load Curtailment Illinois NW Arkansas California

2006 Voluntary Load Curtailment Illinois – Reduced load on one day for one hour. There were 36 stores involved. NW Arkansas – Reduced load for 3 days at all NW Arkansas stores and Home Office Campus California – Reduced load for three days at 50 locations Missouri & Kansas – Reduced load on one day for one hour. There were 5 stores involved

2006 Wal-Mart Demand Response California PGE – 13 locations, 7 events SDG&E – 20 locations, 4 events.

2006 Wal-Mart Demand Response Connecticut Committed to approximately 3,000 kw 35 store locations 30 minute notice provision Actually curtailed over 5,000 kw

2006 Wal-Mart Demand Response Back-up Generators (System Peak Shaving) Georgia Municipal Systems in NC and SC

Demand Response Help reduce overall peak and demand loads Increase available energy supply Help to reduce greenhouse gas emissions Help reduce the need for fossil burning generation plants and construction of new peaker plants. Help create a more reliable power grid

What’s Driving Demand Response Movement Need for new generation Transmission constraints Sustainability/Conservation Customer involvement Improved technology

Demand Response Customers should receive the benefits they earn by participating in demand response Energy payments/Capacity payments Renewable Energy Credits White Tags

Demand Response Allow for aggregation No minimum participation limits Competitive Markets

Demand Response Consumer retention of environmental attributes. Measurement and Verification should be standardized and affordable. Direct Load Control

Demand Response Consistent methods of customer notification.

Demand Response Customer choice with metering. Customers should be allowed to install their own advanced meters provided they are in compliance with standards set by the regulatory authority. Customers should receive full credit for meter ownership. Customers or their authorized representative should have full, free, frequent and easy access to their own meter data.

Demand Response Real Time Pricing Gives customers the most accurate, up to date information so they can manage their load accordingly Gives large consumers the ability to have the most impact on load reduction at the most critical peak times

Wal-Mart Stores, Inc. Thank you