Electrifying MultifamilyAffordable Housing—

©Mithun

PresenterPresentation NotesOn the broader "Recent  Developments in Multifamily MEP engineering" question, the landscape is changing for two reasons:  1. The price of PV continues to drop while the efficiency is increasing,  the same time as the price and efficiency of Solar Hot Water systems has stagnated.2. There is much more focus on Zero Carbon/all electrical designs, as the electrical grid gets more renewable, the reduction in Carbon when comparing Gas Heating and Electric Heat Pump Heating is very favorable.  There are added benefits to not using gas, one whole trade is eliminated for site and that saves on sub cost and GC overhead cost.    On the Title 24 differences, electrical heating is still penalized substantially in the energy code, and offsets are necessary to achieve the performance.  If every project type went to electrical heating there would be an issue with the grid capacity.  So I imagine the CEC will leave the electrical penalty in the code for some time…

Balboa Upper Yard: Mission Housing Development, Related, Mithun

Maceo May: CCDC, Swords to Plowshares, Mithun, AEA

Hunters Point Shipyard Block 52: McCormack Baron Salazar, Mithun

Hunters Point Shipyard Block 54: McCormack Baron Salazar, Mithun

Casa Adelante, 681 Florida: TNDC & MEDA, Mithun

Casa Adelante, 2060 Folsom: TNDC/CCDC, Mithun, YA Studio, AEA

6 San Francisco Affordable Housing Projects -Energy Efficient + All-Electric Systems

EUI 17.8—

Maceo May Veterans Apts,Treasure Island105 Units, 114,836 GSFAll ElectricBattery Storage

©Mithun

PresenterPresentation NotesTo turn off the logo on any page:Select the logo. Go to the HOME tab and click on the Select icon. Use the drop down menu to open the Selection Pane and click the eye icon. It will change to a line and the logo will no longer be visible, but will still be there if needed.

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©Nelson Mechanical Design

Domestic Hot Water: Air Source Heat Pump

A refrigerator operating in reverse

Building Systems

©Mithun

PresenterPresentation NotesMoves heat from one place to anotherThink of a refrigerator operating in reverseCan be stand alone or integrated with tanksEnergy SavingCan retrofit an existing hot water system

©Mithun

Energy Recovery Ventilator

• Slow, continuous supply of fresh air

• Recovers heat and moisture• MERV 13 filter

Building Systems

©Panasonic

PresenterPresentation NotesPanasonic WhisperComfort ERV

Low-rate continuous ventilation that supplies fresh exterior air and exhausts stale interior airExchange capillary core recovers temp and moistureMERV 13 filter changed every 6 monthsCeiling or Wall mount options; 4” – 6” duct size Affordable, Easy to Install, Energy Efficient fans

Energy Benchmarking—

PresenterPresentation Notes*savings from T24 baseline

Zero Emissions – Not Net Zero Energy

PV area required to achieve NZE:

Construction Cost: Lower

Key Drivers:Reductions• Eliminating Solar Hot

Water saved $215,000• Eliminating Natural Gas

saved $168,000

Additions• Electric DHW added

$105,000

Net• $242,000 lower cost

Energy Use: -32% Emissions: -77%

Annual Utility Cost Savings

Normalized by Gross Building Area

• Zero Net Carbon Affordable Housing can

• Be Construction Cost-Neutral

• Offer Lower Utility Bills

• Be Designed and Built Today

• It’s really about Zero Net Carbon (not Zero Net Energy)

PresenterPresentation NotesTo add an em dash (long hyphen): Go to Insert > Symbol, make sure the font box says Century Gothic, select the em dash and click Insert. Or copy and paste this: —

mithun.com

Hilary Noll, AIA, LEED AP BD+CAssociate / Sustainability Integration Leader

415-489-4860 hilaryn@mithun.com

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©Mithun

Wall Assemblies:Window to Wall Ratio:

Glazing: Orientation:

Domestic Hot Water:Ventilation:

Heating & Cooling:Lighting Controls:

Renewables:

Building Systems

Type 1A/Type IIIA, 1.5” continuous insulation31%U-Value: 0.38 SHGC: 0.25Optimizes Bay breezesAir Source Heat PumpERVs in each Unit VRV (Common Areas); Resistance (Units)Occupancy Sensors, Daylight DimmingSolar PV sized for house load

STET SANBORN AIA NCARB CPHC LEED APPrincipal | Engineering Discipline Lead ________________________________

SmithGroup301 Battery Street, 7th Floor San Francisco, CA 94111 T 415.343.2032 stet.sanborn@smithgroup.com

All Electric Commercial BuildingsCurrent examples01.08.2020

mailto:stet.sanborn@smithgroup.com

Jess Jackson Sustainable Winery Building: Siegel & Strain Architects + Guttman & Bleavoet Engineers

ALL ELECTRIC COMMERCIAL BUILDINGS

K-12 Schools Higher Ed Civic / Office Complex Labs

270 BrannanSan Francisco

SF, Office

Perkins & Will

Interface Engineering

Santana Row Lot 11San Jose

SF, Office

Interstice Architects

Interface Engineering

Bradley Terminal, LAX

Andre Salvadar, So Cal Edison food service expert helped these tenants adapt to all electric, he’s a great resource!

All Electric Restaurants at LAXBradley Terminal

Kaiser Santa Rosa Medical Office

87,300 SF Medical Office

LEED Platinum, ZNE Hawley Peterson &

Sydney, Integral Group

Smith Group (Architecture and Engineering)

BioEpic Laboratory, LBNL70,000 sf, All Electric

BioEpicLaboratory

70,000 SF Research Lab

Smithgroup

https://www.greentechmedia.com/articles/read/california-universities-are-transitioning-to-all-electric-buildings#gs.QUr5W_E

“No new UC buildings or major

renovations after June 2019,

except in special circumstances,

will use on-site fossil fuel

combustion, such as natural gas,

for space and water heating”

https://www.greentechmedia.com/articles/read/california-universities-are-transitioning-to-all-electric-buildings#gs.QUr5W_E

The Exploratorium200,000 SF science museum

ILFI NZE certification expected

EHDD, Integral Group

Resources

Social Equity, affordable housing, and net zero energy: https://rmi.org/social-equity-affordable-housing-and-the-net-zero-energy-opportunity/

The economics of electrifying buildings: https://rmi.org/insight/the-economics-of-electrifying-buildings/

Are we ready for all electric buildings?: https://tinyurl.com/y3unn3r4

Decarbonization of heating energy: https://www.synapse-energy.com/sites/default/files/Decarbonization-Heating-CA-Buildings-17-092-1.pdf

The smog in your kitchen: https://www.fresnobee.com/opinion/readers-opinion/article222726175.html

All electric commercial food service: https://drive.google.com/open?id=1CjrN62JqgffTzri3zeE3hwDqW9Zu80ws

All electric restaurant kitchens: https://www.foodserviceandhospitality.com/why-induction-cooking-is-the-hottest-trend-to-hit-restaurant-kitchens/

Zero carbon commercial construction: http://sanjoseca.gov/DocumentCenter/View/82909

https://rmi.org/social-equity-affordable-housing-and-the-net-zero-energy-opportunity/https://rmi.org/insight/the-economics-of-electrifying-buildings/https://tinyurl.com/y3unn3r4https://www.synapse-energy.com/sites/default/files/Decarbonization-Heating-CA-Buildings-17-092-1.pdfhttps://www.fresnobee.com/opinion/readers-opinion/article222726175.htmlhttps://drive.google.com/open?id=1CjrN62JqgffTzri3zeE3hwDqW9Zu80wshttps://www.foodserviceandhospitality.com/why-induction-cooking-is-the-hottest-trend-to-hit-restaurant-kitchens/http://sanjoseca.gov/DocumentCenter/View/82909

STET SANBORN AIA NCARB CPHC LEED APPrincipal | Engineering Discipline Lead ________________________________

SmithGroup301 Battery Street, 7th Floor San Francisco, CA 94111 T 415.343.2032 stet.sanborn@smithgroup.com

All Electric Commercial BuildingsCurrent examplesJune 12, 2019

mailto:stet.sanborn@smithgroup.com

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