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Typical neighborhood public schools are the Keystones of (sub)urban communities. They're often election polling places, emergency service centers, where day-care centers are located, & where youth sports & other activities take place. In larger communities, they're widely distributed, to serve the surrounding residential residential neighborhood, along with nearby commercial properties. As mentioned, schools most often include large paved asphalt parking lots & playgrounds.

Schools & other public facilities, along with neighborhood shopping centers, business parks & large apartments & condos, all with large parking lots, are the ideal under-utilized place to rapidly develop resilient neighborhood micro grids, with large solar canopies, stationary batteries & Vehicle-2-Grid chargers. Right where most energy consumers live & work. No utility interconnection queues or NIMBY delays, or new transmission, site acquisition, or other site improvement spending required.

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Jerry, I'm totally there with you. I do have to wonder, even for micro grids, whether schools will still need substantive upfitting of transformers, lines, etc. to be the supplier for a large number of houses around them. I'm sure it'll be a case-by-case basis.

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I live in a town that just passed a >$200M bond to build a new high school. Tonight there was a "community conversation" with the school building committee, project managers, design firm, etc. Many community members asked about sustainability measures, and, indeed, the engineers are doing a site evaluation for geothermal heating.

Since I had listened to this great Volts episode, I asked if they would be using IRA or BIF money to help make the cost of the system competitive. The project managers said that they were certainly looking into it, but that the fact that the cash has to be paid up front by the town and then reimbursed makes for really tough decisions. They made it sound like an almost unworkable bind -- they can't spend money they don't have, even if it would end up being a great deal in relatively short order. What are the solutions or work-arounds? They seem like good people wanting to do good things, but can't magically create new money to get the work done, whether or not they have faith that it will be repaid.

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Doing some quick, back of the envelop math for colleges specifically, comparing the returns on a typical college endowment to that of a solar array is interesting. Because 30% or more of the investment into a solar array is covered by the IRA, the annual energy savings are a substantial percentage of the net cost, potentially on the order of 10%. Seeing as traditional endowments support scholarships with returns on the order of 5% of their base value, colleges may be able to court donors with the promise of a highly-visible solar array project on campus (with naming rights!) that could *also* fund a named scholarship with the energy savings. The opportunity seems to be a slam dunk.

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Somewhere I heard that schools are already the building type with the highest fraction of onsite PV. Not sure if its the innate progressivism of school boards or just trying to convince the climate-concerned kids we're doing something for them. Or other grants and funds also targeting that over the last ten years.

I do worry that given the choice between an ESPC contract and direct ownership most SDs will still opt for ESPC since that company gets the tax credit too, and despite overhead and profit has all its existing advantages (no need to issue bonds, project expertise and maybe more).

GSHPs are great, but given the expense to implement in existing buildings, I wish the credit covered other HP applications.

Amusing, but not surprising, to hear of the 20:1 ratio between applications and available grants. Way too many hours are spent beavering away on the other 19 applications.

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Thank you so much for this podcast! Another org to help get the word out are the state/regional/local PTAs. Here in Lake Washington SD, we've had PTSA Sustainability Chairs since 2018....started out mainly working at the ground level volunteering in the schools with students, but over the years many of us have focused more on the advocacy/policy work at the state and district levels in addition to working with neighboring school districts in sharing resources. There's so much potential here and I appreciate that this podcast mentions how essential schools are in the national climate strategy and that this is "so much more than just buildings and infrastructure....these are young eyes seeing this stuff." thank you.

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Schools should have bicycle repair classes and every kid within 2-miles of a school should be able to safely walk or ride their bike to school.

These huge lines of cars waiting to pickup and drop off kids is crazy.

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Hi Dave,

Another great podcast. It raised a couple of questions. 1. Does the system work with cast iron radiators which usually require 180 degree water? Does the system require new radiators thereby increasing the cost above comparable systems.

2. What about A/C? With rising temps, many homeowners first foray into heat pumps is fo A/C. Does Harvest have a solution?

Thanks

Steve

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Jun 30Liked by Samuel R

Steven, I think your comment was intended for the previous episode.

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Jun 30Liked by Samuel R

The pod with the founder of Harvest. Can you move the comment if necessary?

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author

Steven, feel free to repost your question here: https://www.volts.wtf/p/heat-pumps-with-thermal-batteries

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