Welcome everyone! So excited for this webinar. thank you for joining!

I liked the old graph better ;)

Great presentation. Really eye-opening. Any questions for Amber?

Yes. Great presentation. Question: Does the hydrogen discussion assume that cost-comparable H2 combustion equipment exists or does that require special furnaces and water heaters?

I realize this work does not include a comprehensive analysis of using natural gas for resilience purposes through technologies like distributed fuel cells. Is there a plan for doing that analysis? If so my group - Silicon Valley Leadership Group - would love to help brainstorm the questions to frame that analysis.

To what level was the retrofit requirements integrated into the study? Cost? Schedule?

Did modelling of the GHG emissions of natural gas or RNG include emissions due to infrastructure leakage? In some places, this can comprise a large portion of overall emissions from gas and would be equally impactful with RNG as fossil gas.

When looking at renewable natural gas, what was the geographic scope of where that would be sourced? CA only? The US?

How are we going to deal with the PM 2.5 generated from wildfires started by electric distribution? The pro gas folks will use this to scare people away from electrification. Any thought on response to this argument?

The gas demand decrease in all the GHG mitigation strategies is because of the assumed increase in electric vehicles? so with or without building electrification we can assume gas prices to increase?

the winter episode air quality improvements are significant – is this because this is peak winter when there would be the most gas combustion and then that is compared to the same heat load supplied by more efficient air source heat pumps?

Your study and this presentation are very well done! Decarb is necessary but I am concerned about the unintended consequence of replacing gas furnaces with heat pumps in climate zones 2 & 3 in well designed buildings new or existing that currently do not need air conditioning large summer peak loads will be added.

Hi Amber, thanks for addressing the challenge or at least optics of the challenge of airsource heatpumps in the northern colder / winter climes, I've been getting some pushback on this from some folsk I've talked to about Building Electrificaiton.

Have you consider a scenario of converting electricity to hydrogen during the curtailment?

Did your load growth for electrification include additional load due to electric vehicle conversion?

Replace on burn out sounds good but will never work with the level of permit compliance we have now.

What is the work on permit compliance? Who is working on that? If we ever went existing buildings we need permit compliance!

Permit compliance is huge, and probably going to get worse. CASE team is talking about increasing retrofit requirements without any added support. Going to push even more projects out of permitting without other intervention

Full electrification for new construction in municipal utility (SMUD) areas is a no-brainer. We are concerned about avoiding gas (in the short term) in IOU areas (PG&E) because it imposes higher operational costs. Are there some good guidelines for sorting out cost/benefits and advising our clients accordingly.

Thx for the Synpapse study Panama!

To the point of added cooling load, if the bldg. is well insulated, and even if it has AC, customers will not use AC so no load will be added. I do think thought this will be a cost concern for customers when deciding to add HPs.

This was so great, thank you!