Laserfiche WebLink
SFO Consolidated Admin Facility <br />10/28/2019 <br />Eric Solrain, Principal <br />IN IEG RAL <br />Integral currently has dozens of all -electric buildings recently complete, in <br />construction, and in design. There has been a big sea change in recent <br />years towards all -electric. Around 50% of our work is currently electric. <br />There is lot of momentum in Multi -family Residential and in Commercial <br />projects moving to electric systems. <br />Comparing the construction cost of all -electric to gas depends on what <br />you are comparing it to. If comparing to a high-performance design such <br />as LEED Gold then all -electric is cheaper. If comparing to moderate <br />performance building then all -electric is cost neutral. If comparing to the <br />most basic design, there may be a small cost premium. <br />There are some significant code changes in California energy code in 2019 <br />that will make all electric even more cost competitive, especially for <br />multifamily. <br />Eric Solrain, Principal <br />I NTEG RA L' <br />All electric has several big advantages: <br />• Electric equipment takes up significantly less space and that space can <br />be used for other things. At 1700 Webster the gas option filled the roof <br />with equipment, while the heat pump option had much less equipment <br />so they were able to put a nice deck and pool on the roof. <br />• Getting gas service to the equipment, and a flue out through the <br />building can be challenging problems and cost money. Getting make- <br />up air to gas boilers can be challenging. <br />• For large multi -family projects heat -pump dryers avoid all the problems <br />associate with venting. <br />• There have been good advances in heat pump choices in recent years. <br />Aermec and Climacool make excellent equipment, that can heat and <br />cool simultaneously with robust controls. <br />• There are huge climate benefits to shifting from gas to electric. London <br />is completely redoing it's 10 year old decarbonization plan which was <br />drafted when they had a dirty electric grid. Their grid is much cleaner <br />now so they are quickly revising the plan to promote electrification. <br />ma <br />N <br />