Destination 2020, Goal Six: Efficiencies

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Anchorage School District Destination 2020 Goal 6

Efficiencies 20% by 2020 Energy Efficiency Program Cyclic Bus Replacement


Purpose 1. Inform: - Achieve D2020 Goal 6 ‐ Efficiencies • •

20% by 2020 Energy Efficiency Plan Buses – Cyclic Replacement

2. Enable discussion and questions 3. Receive Board guidance 4. Receive Board approval to move forward on Phase 1 of 20% by 2020


Agenda 1. The 20% Reduction by 2020 Plan - General overview - Details and analysis - Phase 1

2. Cyclic Bus Replacement - Overview and analysis - Bus improvements


20% Reduction By 2020 – Overview 1. ASD annual energy cost: $15,000,000 - 20% = $3,000,000 – Targeted annual savings

2. Project types and projected efficiencies gained: - LED lights - High‐efficiency, condensing boilers - Retro‐commissioning

25% 20% 10%


LED Lighting

Before: 102 light fixtures

After: 18 light fixtures Much improved lighting and efficiency


High‐Efficiency Condensing Boilers

Condensing Boiler - 15% more efficient - 19 schools already transitioned

Cast Iron Boiler


Schools with H‐E Boilers NG Usage Before (Avg CCF)

NG Usage After (Avg CCF)

Percent Reduction

Bear Valley ES

48,021

28,455

37

College Gate ES

38,994

27,313

30

Girdwood K8*

22,605

16,497

27

Hanshew MS

114,306

86,617

24

Mountain View ES

48,308

28,455

41

Nunaka Valley ES

33,026

22,283

33

Spring Hill ES

41,347

26,958

35

Stellar

34,493

21,917

36

Tudor ES

40,526

26,992

33

Turnagain ES**

37,256

33,647

9

School

* Girdwood renovation resulted in doubling of building square footage ** 1 of 2 boiler rooms converted


20% Reduction By 2020 – Program 1. 2. 3. 4.

Multi‐year; 3 phases Mix of high‐return projects with slower return projects Financed (best‐available rate) $45,000,000 potential total investment -

Amounts informed by the expected return on investment – Break even point

Phase

Investment

Annual Cost* (projected)

Estimated Savings

Proposed Time Line

1

$10,300,000

2

$20,000,000

FY 2017/18

3

$14,700,000

FY 2018/19

$800,000

*Cost determined by loan amount and interest rate.

$889,740

FY 2016/17


20% Reduction By 2020 – Phase 1 1. 2. 3. 4.

FY 16/17: Requires Board and Assembly approval Estimated total investment: $10,300,000 Estimated annual cost (2% interest rate): $800,000 Break even for capital investment: Y10‐16*

Project Type

Schools Affected

Projected Savings

Boiler

Dimond HS, East HS, Begich MS, Muldoon ES

$141,095

LED Lighting

Chugiak HS, Dimond HS, Service HS, KCC, Muldoon ES, Ptarmigan ES

$398,148

Retro‐ Commissioning

Chugiak HS, Dimond HS, East HS, Service HS, KCC, Begich MS, Muldoon ES, Ptarmigan ES

$350,496

Total Projected Savings *Break even year informed by interest rate.

$889,740


Cost by Project (Estimated) School

Boiler

Chugiak HS Diamond HS

$575,000

East HS

$575,000

LED Lighting

Retro‐Commissioning

$1,425,000

$90,000

$1,275,000

$75,000 $95,000

Service HS

$1,275,000

$100,000

KCC

$1,100,000

$50,000

Begich MS

$350,000

Muldoon ES

$250,000

Ptarmigan ES Total

$1,750,000

$50,000 $675,000

$20,000

$675,000

$20,000

$6,425,000

$500,000


20% Reduction By 2020 – Finance 1. Options: Loan Source

Rate

First Year Cost

Annual Cost

B/E Year

Net Savings (25 Years)

AHFC

3.375

$204,745

$876,024

Y16

$8,048,000

Bank Loan

2‐2.5

*$874,152

*$824,148

*Y14

*$8,991,488

MOA Master Lease Plan

2.0

$810,377

$795,337

Y10

$9,423,109

*Numbers based on a 2.5% interest rate.


Board Discussion


Buses – 15 Year Cyclic Replacement Program


Buses – Overview 1. 123 buses (reducing to 121) in Pupil Transportation Fleet 2. Average fleet age: 14.1 years 3. CGCS: Median – 9; Lower Q – 6: Upper Q – 11.2 4. Largest purchases: 2003 (20), 2001 (13), 1999 (26), 1998 (11) 5. 94 buses 14 years or older (11 buses over 20 years old) 6. 18 buses (2013‐present) under 5‐year powertrain warranty 7. Average annual maintenance cost for 8 most expensive buses: $8,200 8. Cost to lease 8 – 84‐passenger buses: $117,000/year; 10 year lease 9. Bus improvements in the last 30 years: Efficiencies

Safety

20% fuel efficiency; ultra low diesel fuel

Higher seatbacks; more padding

Automatic Braking Systems

Electronic fuel control/management

Fire resistant seat coverings

Electronic Stability Control

6,000% reduction in particulate emissions

Fire resistant floorings

LED lighting

Electronic transmission

Air‐ride suspension

Improved reflective materials

Onboard diagnostics

1‐piece rim; tubeless tires

Outward opening doors

Pre‐trip recording

Automatic dropping chains

HD surveillance cameras


Buses – Cost Comparison & Analysis Existing Fleet ‐ Annual Maintenance Cost Comparison Years Purchased Average Annual Maintenance Cost/Bus Average Annual Repair Hours/Bus Cumulative 10 Year Maintenance Cost

Analysis

2007‐2016

2006‐1997

Difference

$1,478.30

$5,020.33

$3,542

17.97

20.74

2.77

$443,490

$4,769,316

$4,325,826

*Annual Fuel Cost Comparison Engine Type

MPG

Fuel Use (G)

Fuel Cost

9.5

7,150

$15,015

Last Generation Diesel

7.6

8,950

$18,776

($3,760)

6

11,325

$23,785

($8,770)

Action

Lease

Maintenance

Fuel Cost

Total Cost

Retain 8 Buses

$0

$65,600

$190,280

$255,880

Lease 8 Buses

*$127,000

**$2,400

$121,520

$250,920

Difference

$4960

* Includes electronics (GPS, radios) **Estimated servicing costs (filters, lubricants, etc.); Vehicles under warranty through Y3‐Y5

Lease costs offset by reduced fuel and maintenance costs

2.

Effective annual cost to lease 8 buses Y1 – Y5 is estimated to be less expensive than retaining higher‐cost vehicles

3.

Sustained leasing of 8 buses/year for 15 years results in a 7.5 year average fleet age

4.

Better technology, safer and more environmentally friendly

*Based on 1 bus operating 172 school days, 395 miles/day, $2.10/gallon diesel

Retain or Replace the 8 Most Expensive Buses

BL: Leasing is cost‐effective ‒

Difference

Contemporary Diesel 10 Years or Older

1.


Buses – Exterior Yellow Lights


Buses – Exterior Red Lights


Buses – Stop Arms


Buses – Tail Lights


Buses – Interior Lighting


Buses ‐ Seats


Buses – Service Doors

Old: Bi‐Fold Doors

New: Outward Opening Doors


Discussion


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