More efficiency, lower energy bills
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The 1973 energy crisis was a wake-up call that set California on a path towards energy independence.
The gradually increasing efficiency of new California buildings insulates residents from rising energy prices.
Since the last update, technology has advanced…
Big changes for 2020
** Title 24, Part 6 requirements vary by “climate zone”
Venice is Zone 6, downtown LA is Zone 8.
Using an old-fashioned water heater may require:
New section 150.1[c]14 (page 284)
The formula for how much solar new houses need is:
kW PV = (CFA x A)/1000 + (# units x B)
where A and B are given by Table 150.1-C on page 286
e.g. a 5400 sq ft Venice duplex needs 5.7 kW of solar
A battery can reduce solar requirement (page 285)
Solar awnings can save space and keep house cooler
Cost: $9,500 (much lower if solar is leased)
30 year savings: $19,000
Increased comfort, lower energy bills
Dan Neil (WSJ) says EVs are cheaper and better than normal cars, and he’s not looking back.
Tennants will want to plug their car in. Let them.
EV prices declining, expected to be cheaper by 2023
Single-family houses only need a 240v outlet
Multifamily houses should plan for hardwired chargers
Section 188.8.131.52: parking spots ready for EV chargers
See also CARB cost analysis
Note: LA may require 20% or more soon
Section 184.108.40.206.4: Total panel capacity required
EMS = Energy Management System or “smart charger”