carroll. >> ilene bovin coalition for san francisco neighborhoods here on my own behalf. on the overhead is the proposal for the 2019 building code update. it was presented at the capital planning committee on july 22 of this year. in its presentation, the department of the environment stated that 35% of the city's emissions today is from private-sector natural gas. to reduce these emissions, the proposal is to encourage all electric design in new construction. the timeline for this proposal is for review by the department of building inspection and code advisory committee in august, the board of supervisors land use committee in september, and the full board in october. while not in the department of the environment presentation, the capital planning committee members expressed concerns. with increased reliance on electricity, the issue of reliability was raised. the response was possible use of battery storage for electricity. although not specifically related to this presentation, the issue of undergrounding was raised. with the risk of blown transformers and downed po