1. NetZero Summit HPBA Pacific & HPBA Sacramento, California June 28, 2011

2. Agenda Introductions Background on California & Federal Residential Energy Issues Background on the California Energy Commission (CEC) Report on four scoping meetings Presentation by CEC staff Presentation by CBIA staff GOAL: Joint Steering Committee

3. What, is “NetZero” A net zero energy building consumes only as much energy on an annual basis as can be generated with an on-site renewable energy system. (2007 IEPR)

4. Tiered Approach, Mandatory vs. “Reach” Standards The Energy Commission has begun a path toward a tiered approach to achieve zero net energy. Base tier will be the traditional mandatory standard that increases in stringency with every code cycle. Additional tiers-voluntary, represent a "reach" standard for advanced energy efficiency.

5. NetZero Concept – Cont: Intent of the advanced, voluntary tiers is to provide industry with framework for differentiating highly energy-efficient buildings from standard buildings. To pilot these enhanced features in the field to see how well they work before determining which measures should be included in future mandatory standards. Mandatory & reach standards will be developed in parallel.

6. Basic concept-ZEH-NetZero Very low envelope loss or gain In Cold climates, passive gain In hot climates, minimize summer heat gain PV system generates significant Electric load – May use Electric Grid as storage –Usually acknowledges Source energy –Gas heat in some concepts, grudgingly Utilizes low energy appliances, does not address plug load Green Building doesn’t always equal NetZero

7. USDOE/EERE Building America Research Teams 15 research teams- each with 3 -10 members and 1 lead organization –NAHB research center –U of Minnesota –Florida Solar Energy Center –Penn State –Dow Chemical Co (retrofit methodologies) –Consol –Gas Technology Institute EERE committed to many millions for research through this system

8. What’s At Stake- Future Design of All New North American Homes