Programs to promote efficiency
promise much greater cost savings
than diversification through coal
Navigant (one of the city of Tallahassee’s
energy consultants) found that by continuing to use natural gas
and adding an aggressive energy efficiency program, the city
would save an average of $10.7 million a year. That’s savings
almost six times greater than the $1.9 million in savings for
the city projected from the coal plant, and customers who take
advantage of efficiency opportunities would save even more.
|
Current Plans |
Fossil Fuel Only Cost in
Millions |
Projected Annual Savings from
Coal, in Millions |
Projected Savings as a
Percentage of Total Costs |
Cost in Millions, With
Efficiency Programs |
Projected Annual Savings from
Efficiency Programs, in Millions |
Projected Savings as a
Percentage of Total Costs |
|
All Gas |
$4,870.0 |
$1.9 |
1.1% |
$4,549.7 |
$10.7 |
6.6% |
|
Taylor Energy Center coal |
$4,814.5 |
|
|
$4,532.4 |
$9.4 |
5.9% |
In addition, it would delay the need for
any type of additional fossil fuel generation by until 2015, and
provide a hedge against rising fuel prices.
The investment to get this return averages
out to $12 million a year. There was some discussion at the city
commission meeting about whether Tallahassee could afford this
level of investment. The city clerk’s office pointed out that
the current value of the principal and interest on the Taylor
Energy Center will average $27 million a year. If it comes to a
choice between the Taylor Energy Center and an aggressive
efficiency programs, the expert analyses show that the return on
investment for investment in efficiency will be significantly
better, even if the program reaches only 50% of the maximum
achievable savings. From a strictly economic point of view,
efficiency is the better choice for the city.
Cost savings from diversification by
adding 30 MW of biomass to our natural gas generation would be
slightly more than diversification through coal alone:
If the city invested in 30 MW of biomass
under the terms currently proposed in negotiations with BG&E and
did not build a coal plant, it would result in $2.0 million in
annual savings compared to $1.9 million we might save by
diversifying through an investment in coal alone. Some
indications point to a potential for greater biomass generation
in the future, and we would like to see the city continue
exploring the potential feedstock for additional clean biomass
generation.
|
Current Plans |
Fossil Fuel Only Cost in
Millions |
Projected Annual Savings from
Coal, in Millions |
Projected Savings as a
Percentage of Total Costs |
Cost in Millions, with Biomass |
Projected Annual Savings from
Biomass, in Millions |
|
All Gas |
$4,870.0 |
$1.9 |
1.1% |
$4,810.60 |
$2.0 |
|
TEC coal |
$4,814.5 |
|
|
$4,779.50 |
$1.2 |
The Big Bend Climate Action Team (BBCAT)
has done a rough estimate of the impact of adding both the
aggressive efficiency programs and 30 MW of biomass. If the
impact of the efficiency programs on the reduced costs with
biomass is proportional to its impact on the fossil fuel only
plans, a plan with natural gas, biomass and aggressive
efficiency programs will end up costing slightly less than a
plan with coal, biomass and aggressive efficiency programs. Our
calculations are as follows:
|
Current Plans |
Cost of "Fossil Fuel Only" plan
in Millions |
Cost in Millions, With
Efficiency Programs |
Plan Cost with Efficiency
Programs as a Percent of Fossil Fuel Only Cost |
Plan Cost in Millions, with
Biomass |
Estimated Plan Cost in Millions
with Biomass & Efficiency Programs * |
|
All Gas |
$4,870.0 |
$4,549.7 |
93.4% |
$4,810.60 |
$4,494.21 |
|
TEC coal |
$4,814.5 |
$4,532.4 |
94.1% |
$4,779.50 |
$4,499.45 |
At the June 28, 2006 commission meeting,
staff stated plans to do this analysis to reoptimize the
candidate resource plans with efficiency and renewable
resources. This reoptimization is a step in the right
direction, and such analyses should be prepared as soon as
possible, and shared promptly with the BBCAT and the city
commissioners.
In the current energy economy, there
are considerable advantages to deferring major fossil fuel
investments such as a coal plant:
We are on the brink of tremendous
technological and regulatory changes in the energy industry. In
times of flux such as these, as we face fossil fuel price
increases and dramatically increasing awareness of the economic
and social costs of climate change, deferring investment in a
coal plant, which has roughly double the carbon-dioxide
emissions of our current generation, makes economic and well as
ethical sense. Changes such as increased potential for
cost-effective biomass feedstock production, development of
technology for sequestering carbon-dioxide, even tidal power
turbines are all possible developments within the next twenty
years. Since we have the capability of waiting, why jump into a
technology that is likely to be penalized in the future if we as
a nation are responsible in addressing the causes of global
warming.
Tallahassee has a unique opportunity to
become a leader of the Southeast in addressing global warming
If media attention and attendance at An
Inconvenient Truth are any indication, Tallahassee, like the
rest of the nation, is awakening to the threats posed by climate
disruption. As the Democrat recently noted, Florida is
uniquely vulnerable to the intensifying hurricanes and rising
sea levels associated with global warming. The best hope of
averting worse problems than we’re already facing lies in local
actions in line with the U.S. Mayor’s Climate Protection
Agreement signed by Mayor Marks. Although the problem is global
in nature, American cities and states are leading our country in
addressing it.
In making the decision that faces the city
about our energy future, city commissioners could make a
fiscally sound decision that will position the city as a leader
in climate action. If they decide to invest now in the Taylor
Energy Center, we dramatically increase our contribution to
global warming over the next thirty years. Tallahassee’s share
of Taylor Energy Center will increase our emission of carbon
dioxide by more than half a million tons a year, or 17 million
tons over the next 30 years. With a projected 50 years of
functioning for the plant, that will increase to 28.7 million
tons.
An alternative future is to diversify the
city’s existing clean natural gas generation with an investment
in biomass and an aggressive efficiency program to limit growth
in demand. These investments would save us money, avoid the risk
of being on the wrong side of climate abatement efforts, and
diversify our fuel sources. They will position us as the clear
leader of the southeast in addressing climate change concerns.
Since our base generation is natural gas, we could exceed
Austin’s claim to be the national leader in avoiding climate
change impacts – without the benefit of cheap wind power.
Making this investment in efficiency and
renewable energy may seem like a no-brainer, but it will require
vision, courage and commitment for the city to chart a new and
less familiar path. But if we are serious about addressing the
impact of our city’s actions on our climate, now is the time to
put an energy plan in place that uses efficiency and affordable
renewables like biomass to meet our energy needs, lower costs,
and reduce our contribution to global warming.