six deployment policies examined here, in contrast, would bring energy consumption and carbon emis 

sions from buildings in 2025 almost back to 2004 levels (Figure 17).  

At the same time the built environment in 2025 will be meeting the needs of an economy that

will have grown by 96 percent.

187

After 2025 the nation could begin to get the much deeper reductions

that many believe are needed to mitigate climate change.

Figure 17

Building Sector Energy Use in 2025  

Based on a Scenario of Six Market

Transformation Policies and Expanded R&D.

Growth in Energy Use

Reductions from Six Market

2004 2025

Transformation Policies

Reductions 

8 Quads

from R&D

2 Quads

4 Quads

Total Energy

Consumed 

38 Quads

Solid State Lighting

in 2004

Advanced Geothermal Heat Pumps

Integrated Equipment

Efficient Operations

+

Smart Roof

52 Quads of Buildings Sector Energy Use in 2025

+

61

Towards a Climate Friendly  

Built Environment

+