To modify the efficiency standards for grid-enabled water heaters.

[AI summary unavailable — showing source text] Amends the Energy Policy and Conservation Act (EPCA) to provide additional energy conservation standards applicable to grid-enabled water heaters for use as part of an electric thermal storage or demand response program (a program that enables customers to reduce or shift their power use during peak demand periods). Requires annual reports from: (1) manufacturers of such water heaters regarding the quantity of the products shipped each year, and (2) utilities and other demand response and thermal storage program operators regarding the quantity of products activated for their programs. Requires the Secretary of Energy to publish analyses of data collected from such reports and to establish procedures to prevent product diversion if sales of the products exceed by at least 15% the quantity activated for use in the demand response and thermal storage programs annually. Maintains the standards and publication procedures established by this Act until the Secretary determines that: (1) such water heaters do not require a separate efficiency requirement, or (2) procedures to prevent product diversion for non-program purposes would not be adequate to prevent such product diversion. Requir…