Design

Cultural Consultation

Kimokeo Foundation 

Code Compliance

1. IECC 2018 Guides 

Elevator

• An elevator is required for the second floor.

• Installations and maintenance are expensive. $400k + $400k

• Consider making all single floor.

• Consider connecting second floors with bridges to minimize the number of elevators.

• Protect the pit from water intrusion. Protect the cabs/sensors from wind damage.

• DCAB: 

  • The 3,000 sq ft rule is for Act 3 which applies to projects like Walmart etc.  Schools fall under act 2 whereby if occupancy on second floor exceeds 5 persons, elevator is needed even if equal accommodation on ground floor.  

  • He gave the example of Mililani High School, where one elevator serves all second-floor spaces with elevated walkways. 

  • “Not to have you circumvent the regulations, but if your plans show a phased approach, modular classrooms as phase 1, and an elevator is shown as phase 2, DCAB does not circle back to verify that phase 2 was completed. However, if a lawsuit is filed, SFA would be held to answer and comply.”

Roof

• Use standing seam metal roofs. Avoid flat roofs.

• Shed type facing South or East/West

• Secure PV panels with clamps on seams

Flooring

• We have had many installation and maintenance issues with VCT, LVT,  linoleum, and rubber flooring.

• Alternatives?

  • Polished concrete

  • Expoxy, Resin Terrazo Epoxy matrix + recycled glass

  • Tile

Sustainability

• Rainwater for irrigation

• All electric kitchen

• Solar water heater or Heat pump water heater

• Solar PV: Total 650 kW for Ph I and Ph II; Annual output over 600 MWh

References

• Use LASD Asset Management design guide  2.4 Environment and Sustainability

• ASHRAE: Zero-energy K-12 Building 

• NREL: Affordable Net Zero Energy K12 Schools

• NREL: Net Zero feasibility study 

Energy Use Index

Zone 1AA Zone 1AB Zeone 1AC Zone 1AD ASHRAE Net-Zero Zone 1A

Elementary 16 20 21 24 21.3

Middle 17 21 22 25 21.1

High 17 21 22 25 21.1

• Zone 1AA: Windward dist, Kekaulike

• Zone 1AB: Central dist, Hilo-Waiakea complex

• Zone 1AC: Honolulu dist and all other areas

• Zone 1AD: Leeward dist, Hana-Lahainakua-Lanai-Molokai, Waimea

Resiliency

• Coordinate with Maui County: emergency.management@mauicounty.gov

• Add resiliency to the cafetorium

• Solar PV + Battery Energy Storage + Switchgear to connect external diesel power generator

• Tesla 1MW/3.9MWh mega pack $1M material + $1M installation

• Should we move the MDF from the library to cafetorium?

• Isolation switch Schneider ASCO SourcePacT

Battery Energy Storage System

• A switchgear, concrete pad for a diesel generator

• Minimum capacity: 70 kW (50kW AC + 20kW utility) x 24 hours  = 1.4 MWh

• Tesla Megapack 1MW 3.9MWh = $2M for system + installation 

  • Maintenance cost $8,830/year

  • One Tesla Megapack can support the school's peak load. (1k students) 250~300kW peak vs Tesla Megapack 1MW

  • Schnider Electric 250-2,000 kWh BESS

• Codes and standards for battery energy storage system 

Exterior Finishes

• GRFC + waterproof + insulation (Polyiso)

EISB

• IP Phone

• Phone line/cellular (Elevator, FAS)

• MDF (location, size)

• IDF/telecom

• Notification system

Fields

1. Artificial turf fields 

IRA Clean Energy Tax Credit and Other Rebates

• Overview of IRS IRA Clean Energy Tax Credit 

• Section 48 Investment Tax Credit - Solar Battery Storage

• Section 179D Energy Efficient Building Design

• IRA 177-169   Alternative Fuel Vehicle Refueling Credit  

• Hawaii Energy Rebates 

WoodWorks Resources

1. Wood-Frame Schools: Durability Techniques for Interior High Traffic and Moisture Areas 

2. Lakeridge Middle School; Lakeridge Middle School (2); Lakeridge Middle School (3)