Integrating Renewable Energy and Efficiency into Utility Programming

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Integrating Renewable Energy and Efficiency into
Utility Programming
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Columbia Water Light

• Municipally owned electric utility
• 43,000 electric meters
• 273 MW Peak Demand
• 1,200,000 Megawatt Hours sold

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Columbia Water Light

• 1.35 Million Tons of CO2 in 2005

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Columbia Water Light

• Carbon Dioxide
• and
  Electricity
• An intimate relationship

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Facts about Carbon Dioxide

• Burning coal, natural gas, or oil produces about
  the same amount of CO2 per unit of energy

CO2
CO2
CO2
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Coal to Electricity

• Producing electricity at a power plant requires
  three units of energy input for each unit of
  output

CO2
CO2
CO2
3 IN
1 OUT
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Coal to Electricity

• Even Natural Gas plants produce 2 units of carbon
  per unit of electricity

CO2
CO2
2 IN
1 OUT
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Coal to Electricity

• Producing electricity at a power plant requires
  three units of energy input for each unit of
  output

CO2
CO2
CO2
3 IN
1 OUT
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Facts about Carbon Dioxide

• As a raw fuel Coal is MUCH less expensive

/ MMBTU
20.00
5
5
10.00
/ MMBTU
5
5
2.00
5
2
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Coal
Gasoline
Natural Gas
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Costs

• The low cost of allows
  
• to be produced at
• competitive

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CO2 Production
City of Columbia
Nat Gas
Petroleum
Electricity
Solid Waste
58 CO2 Emissions
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Electricity - Prometheus
Blessing ?
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Electricity - Prometheus
or Curse ?
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Columbia WL

• What can a utility do?

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CO2 Free Electricity

• Energy Conservation

• Renewable Fuels

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CWL Programming

• Energy Conservation

• Renewable Fuels

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Conservation

• Conservation Programs in Columbia
• Loans for energy efficiency projects
• Free Energy Audits
• Free Shade Trees
• Rebate Incentives

High Efficiency Air Conditioners - up to
800 Lighting Efficiency - 100 per KW Solar
Water Heaters up to 800 Solar PV panels - 500
/ KW
2008 - Energy Star Home Performance Program
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Conservation Economics
ALMOST ALL OF OUR PROGRAMS ARE DESIGNED TO PAY
THEIR OWN WAY
THEY ARE NOT SUBSIDIZED BY OUR RATEPAYERS
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Conservation Economics
CONUNDRUM HOW CAN ENERGY CONSERVATION
PROGRAMS PAY FOR THEMSELF WHEN THEY - BY
DEFINITION - REDUCE ELECTRICAL SALES?
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Conservation Economics
ALL KILOWATT- HOURS ARE NOT THE SAME
SOME ARE MUCH MORE EXPENSIVE THAN OTHERS
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PEAK DEMAND
ELECTRICITY HAS TO BE THERE WHEN IT IS NEEDED -
IT REQUIRES A POWER PLANT LARGE ENOUGH TO MEET
THE LOAD
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(No Transcript)
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High Cost
Intermediate Cost
Low Cost
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Conservation Economics
COST TO PROVIDE 1 KW CAPACITYTREE POWER VS
DIESEL POWER
TREE DIESEL INITIAL
INVESTMENT 40
500 DELAY TO START
5 YR 0 YR PROJECT LIFE
(YRS) 40 40 COST
FOR FIRST 5 YR 475
440 COST FOR YR 6 40
246 3080 TOTAL COST
722 3520
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CO2 Free Electricity

• Energy Conservation

• Renewable Fuels

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CO2 Free Electricity

• Energy Conservation

• Renewable Fuels

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Renewable Portfolio Standard

• 2004 Columbia voted gt 75 in favor of RPS

• Water and Light source requirements for
  electricity

Renewable Energy 2
by 2008 5
by 2013
10 by 2018
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by 2023
Compliance not required if overall cost
increases gt 3
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Renewable Energy
WIND
BIOMASS
SOLAR
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Renewable Energy
WIND
BIOMASS
SOLAR
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Wind - Bluegrass Ridge
Electricity from Bluegrass Ridge
6 MW (out of 54) purchased by Columbia
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Wind
24,000 Megawatt Hours / Yr 2
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Renewable Energy
WIND
BIOMASS
SOLAR
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Renewable Energy
WIND
BIOMASS
SOLAR
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Biomass
(2) Landfill Gas Plants
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Landfill Gas Power

• Columbia Landfill Energy Center

• Jefferson City Landfill Energy Plant

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Biomass
Columbia Landfill Energy Center
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RPS - Biomass
15,000 Megawatt Hours / Yr 1
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Biomass
Test of Wood Waste from nearby sawmill
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Biomass
Up to 10 mix from wood
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Biomass contribution

• Columbia LFG - 1

• Jefferson City LFG - 2

• Wood Waste - 1

TOTAL 48,000 MWH
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Renewable Energy
WIND
BIOMASS
SOLAR
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Renewable Energy
WIND
BIOMASS
SOLAR
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Solar
2 Kilowatt Array Career Center
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Solar
Solar One
ONE percent of Columbias power from the sun by
2023
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Solar One

• Businesses install PV systems and sell output
  to utility for 10 years

• Utility resells solar energy to interested
  customers in 100 Kilowatt Hour blocks

• As the price of new solar goes down the price
  for solar blocks will decrease

• The target goal is to achieve 1 of energy
  (12,000 MWH / Year) from the sun by 2023

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Renewable Energy

• By 2009
• Columbias Renewable Energy projects are expected
  to reduce over
• 80, 000 Tons of CO2 / year

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Energy Conservation

• CWL conservation projects currently contribute to
  a reduction of
• 10, 000 Tons of CO2 / year

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CO2 Reduction

• CWL total programming reduction is currently
• 90, 000 Tons of CO2 / year

Approximately 1 Ton saved per capita

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Integrated Resource PlanStudy underway
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• Jay Hasheider
• Energy Services Supervisor
• Columbia Water and Light
• 573-874-7685
• rjh_at_gocolumbiamo.com