(New for 2016: Change to Exception 4 to Section 110.10(b)1B)
•High-rise Multifamily Building with Occupant Controlled Smart Thermostats (OCST) and Efficient Equipment Installations:
High-rise multifamily buildings that comply with items 1 and 2 below are exempt from solar zone, interconnection pathway and documentation requirements.
1. All thermostats in each dwelling unit are Occupant Controlled Smart Thermostats (OCST) with communications capabilities enabled to receive and respond to Demand Response signals. An OCST is a setback thermostat with communication capabilities that enable the occupant to receive Demand Response related messages and respond to those signals by automatic adjustment of the thermostat setpoint as described in Joint Appendix JA5 (subject to occupant participation). Enabling communications capabilities requires that the OCST has one of the following: onboard communications capabilities, an installed communications module for OCSTs with removable communications module(s), or an installed communications gateway for an OCST where an external gateway is required for communications.
2. OCST must be certified by the Energy Commission to meet the requirements described in Joint Appendix JA5.
One of the following additional measures is followed:
a. Efficient Appliances: install, in each dwelling unit, a dishwasher that meets or exceeds ENERGY STAR requirements, along with either a refrigerator that also meets or exceeds ENERGY STAR requirements or a whole house fan that is driven by an electronically commutated motor.
b. Home Automation: install, in each dwelling unit, a home automation system that can (at a minimum) control either the appliances or the lighting, and can respond to demand response signals. Note that this measure can be met by the same device that performs the OCST functions if that device is also capable of controlling lighting or appliances.
c. Graywater Irrigation: install alternative plumbing (piping) to permit the discharge from any clothes washers (whether in individual dwelling units or communal laundry rooms) and all showers and bathtubs to be used for an irrigation system. This graywater system must comply with the California Plumbing Code and any applicable local ordinances.
d. Rainwater Catchment: install a rainwater catchment system that is able to capture water flowing from at least 65 percent of the building's roof area. This catchment system must comply with the California Plumbing Code and any applicable local ordinances.