Measuring and Maintaining Costor

Spot Light on Life-Cycle Costs

Kord ChristiansonPresident, TDX Powerkord@tdxpower.com907-360-2939

• TDX Power:• Part of a diversified Alaska Village Corporation committed to identifying and

implementing renewable energy solutions in Alaska that reduce fossil fuel dependence an and improve rural community sustainability and economics.

• TDX presently Own & Operate 5 regulated Utilities in Alaska• Two are Wind –Diesel Utility Systems• TDX’s first wind-diesel system was constructed in 1999 on the Island of St Paul

without any grants or funding.• TDX’s St Paul Petroleum Oil Support Services (POSS) Camp Wind-Diesel System

• 20% Operational – Wind-Only Mode• 60% Operational – Wind-Diesel Mode• 20% Operational – Diesel-Only Mode• Excess wind energy used to make hot water for heating, no electric energy storage

Life-Cycle Cost

• Total Cost of Ownership– First Cost to purchase– Cost to install– Cost of ENERGY– Cost to replace– Cost of consumables– Cost of Labor for maintenance– Cost for special tools (bucket truck, man-lift)

Lighting Basics

• Color Temperature• Lumen Output• Life Expectancy• Temperature & Environment• Maintenance• ENERGY USE

Lighting Color Temperature

Lighting Lumen Output

Lighting Life Expectancy

Light Life-Cycle CostDescription Watts Lumens

Years Life*

Color K

Bulb Cost

Yearly Energy Cost**

Simple 1-Year

Cost

Simple 2-Year

Cost

Simple 1-Year Cost

@ 55 ¢/kWh

Simple 2-Year Cost

@ 55 ¢/kWh

Philips Soft White 60 860 0.9 2770 0.41$ 7.23$ 7.64$ 14.87$ 36.56$ 72.71$ GE Soft White - Double Life 60 780 1.8 2800 0.73$ 7.23$ 7.96$ 15.19$ 36.88$ 73.03$ Philips Soft White - DuraMax 60 830 1.4 2750 0.54$ 7.23$ 7.77$ 15.00$ 36.69$ 72.84$ Philips Soft White - EcoVantage, Dimmable Pleasant Light

43 750 0.9 2920 1.49$ 5.18$ 6.67$ 11.85$ 27.39$ 53.29$

GE Clean Beautiful Light, uses 28% less energy, incandescent replacement

43 565 0.9 2900 2.74$ 5.18$ 7.92$ 13.10$ 28.64$ 54.54$

Cree LED Soft White, Dimmable, Instant Full Brightness, No Mercury, Shatter Resistance

9.5 800 22.8 2700 14.27$ 1.14$ 15.41$ 16.55$ 19.97$ 25.67$

Cree LED Daylight, Dimmable, Instant Full Brightness, No Mercury, Shatter Resistance

9.0 800 22.8 5000 15.37$ 1.08$ 16.45$ 17.53$ 20.77$ 26.17$

GE Energy Smart CFL Comfortable Living Light

15 800 7.3 2700 5.64$ 1.85$ 7.49$ 9.34$ 14.89$ 24.14$

Great Value Soft White CFL, non-dimmable, mercury

14 900 9.1 2700 1.88$ 1.69$ 3.57$ 5.26$ 10.33$ 18.78$

* Years Life = 3 hours/day or 986 hours/year for 0.9 years or 25,000 hours/year for 22.8 year or ~10,000 hours/year for 9.1 years or ~8,000 hours/year for 7.3 years

Light Life-Cycle Cost 25,000 hour Life-Cycle Cost of Ownership

Description Watts LumensYears Life*

Number of Bulbs

ReplacedLabor

Electric Cost @

11 ¢/kWh

Electric Cost

@ 55 ¢/kWh

Electric + Bulb Cost

@ 11 ¢/kWh

Electric + Bulb Cost

@ 55 ¢/kWh

Philips Soft White 60 860 0.9 25 ? 164.84$ 824.22$ 165.25$ 824.63$ GE Soft White - Double Life 60 780 1.8 13 ? 164.84$ 824.22$ 165.57$ 824.95$ Philips Soft White - DuraMax 60 830 1.4 18 ? 164.84$ 824.22$ 165.38$ 824.76$ Philips Soft White - EcoVantage, Dimmable Pleasant Light

43 750 0.9 25 ? 118.10$ 590.52$ 119.59$ 592.01$

GE Clean Beautiful Light, uses 28% less energy, incandescent replacement

43 565 0.9 25 ? 118.10$ 590.52$ 120.84$ 593.26$

Cree LED Soft White, Dimmable, Instant Full Brightness, No Mercury, Shatter Resistance

9.5 800 22.8 1 0 25.99$ 129.96$ 40.26$ 144.23$

Cree LED Daylight, Dimmable, Instant Full Brightness, No Mercury, Shatter Resistance

9.0 800 22.8 1 0 24.62$ 123.12$ 39.99$ 138.49$

GE Energy Smart CFL Comfortable Living Light

15 800 7.3 3 ? 42.18$ 210.90$ 47.82$ 216.54$

Great Value Soft White CFL, non-dimmable, mercury

14 900 9.1 2 ? 38.53$ 192.66$ 40.41$ 194.54$

Questions?Kord ChristiansonPresident, TDX Powerkord@tdxpower.com907-360-2939