There
have been alarming forecasts that renewable energy will cause
skyrocketing electric rates. This Spring one opponent of wind farms
stated that the cost of generation by wind was about
half again as high as that by coal or by natural gas [1]. But
generation is only a fraction of your electric bill, and renewables
(mostly wind) are only a small fraction of that fraction. As a
result, even this large cost difference in the generation phase of
electricity production would lead to only a small single-digit
increase in your electric bill (Table 1).
but, in fact, while gas and coal were cheaper this Spring, wind was
cheaper last fall [2]. Since today's natural
gas prices are about as low as they ever get [3], today's cost
difference can't be expected to last.
It
is difficult to make predictions of utility prices because prices of
natural gas vary wildly and unpredictably over time [3]. For this
reason, the Presidents of both AEP [4] and Duke Energy [5] have
expressed concern about the rushing too fast into natural gas.
In
contrast, the price of wind is almost entirely fixed by the cost of
construction of the wind farm. So, the owner of the wind farm can,
and does, offer long-term contracts at a fixed price. Since the cost
of turbines has continually decreased [6], today's new wind farms can
offer electricity considerably cheaper than even a few years ago.
Since Ohio has gotten a late start into renewalbes, we are fortunate,
since we will have the newer, more economical wind farms.
Because
of these different characteristics of wind and gas costs, a utility
executive planning for the next twenty years has a dilemma:
If
he chooses gas (or coal) he knows how much electricity he will
generate, but doesn't know how much the fuel will cost.
If
he chooses wind he knows how much electricity generation will cost,
but not how much he will get.
It
is these two imponderables, that make predictions of electricity
costs problematic.
Some
guidance for the future is available from actual experience in other
states on the effect of renewables on electric rates. Indirect
evidence comes from six of our sister states (Illinois, Indiana,
Iowa, Minnesota, Missouri, and West Virginia), who have more
renewable energy than Ohio, but whose utility rates are lower (Table
2). The Public Service Commission of Wisconsin [7] reports that
renewables in that state add one percent to electricity bills. But
most of their wind turbines are older and produce electricity more
expensively. While electricity providers in Michigan are allowed to
charge a premium of up to a three percent premium to allow for the
extra cost due to renewables, very few do so, and most even charge
nothing [6].
In
conclusion, wind energy has become a viable economic alternative to
fossil fuels and is a great improvement environmentally.
References
[1]
Sen. William Seitz quoted in “Senate Energy & Public
Utilities”, Hannah Capitol Connection, 24 April, 2012
[2]
“NW Ohio, SE Michigan wind power is churning up cash”,
toledoBlade.com, 17 Oct, 2011
[4]
“AEP chief: U.S. Needs flexible energy plan” Columbus Dispatch,
27 April 2012
[5]
“At forum, energy experts say natural gas plays mixed role in
America's energy future” San Jose Mercury News, 13 June 2012
[6]
“Report on the Implementation of the P.A. 285 Renewable Energy
Standard and the Cost-Effectiveness of the Energy Standards”
Michigan Public Service Commission, 15 Feb. 2012
[7]
“Report on the Rate and Revenue Impacts of the Wisconsin Renewable
Portfolio Standard, Docket 5-GF-220” Public Service Commission of
Wisconsin, 15 June 2012
TABLE 1. Worst
Case Scenario of Increased Electric Rates due to Renewables
Price Component |
Actual Bill (1) |
Full Renewables
Bill (2) |
Generation |
11.46 |
12.18 (3) |
Transmission |
1.89 |
1.89 |
Distribution |
9.20 |
9.20 |
Tax |
4.52 |
4.65 |
Total |
27.07 |
27.92
(+ 3 %) |
Our
residential electric bill for May, 2012
Assuming
that the maximum target for renewables in Ohio by 2024 had been
achieved and that renewables cost fifty percent more than fossil
fuels (ratio used by Ohio State Senator William Seitz during
Committee meeting, 24 April 2012)
Assuming
1/8 of electricity comes from renewables (Ohio goal for 2024)
Table
2. Most States in our Region Have More Renewable Energy and Lower
Electric Rates
A.
Total Renewables as of Dec. 2010
(latest
comparable data available)
State
|
Industrial
Rate,
Cents/kWh
|
Renewable
Electricity, %
|
Unemployment,
%
|
Illinois
|
6.2
|
2.6
|
9.8
|
Indiana
|
6.4
|
3.0
|
9.0
|
Iowa
|
4.9
|
17.9
|
5.6
|
Kentucky
|
5.3
|
3.1
|
9.1
|
Michigan
|
7.2
|
3.7
|
9.3
|
Minnesota
|
6.3
|
13.9
|
5.7
|
Missouri
|
5.3
|
2.7
|
8.0
|
Ohio
|
6.2
|
0.8
|
8.1
|
West
Virginia
|
6.2
|
2.9
|
7.9
|
Wisconsin
|
7.1
|
7.1
|
7.1
|
Sources
Bureau
of Labor Statistics: Local
Area Unemployment Statistics, December,
2011; US Energy Information Administration: Average
Retail Price of Electricity to Ultimate Customers by End-Use Sector
by State, January 2012 and 2011; US
Energy Information Administration: State
Renewable Electricity Profiles 2010
B.
Wind Capacity as of March 2012
State
|
Wind
Power,
MW
|
Electric
Rates,
Cents/kWh
|
Illinois
|
2852
|
9.01
|
Indiana
|
1342
|
8.04
|
Iowa
|
4419
|
7.59
|
Kentucky
|
0
|
7.11
|
Michigan
|
377
|
10.37
|
Minnesota
|
2718
|
8.68
|
Missouri
|
459
|
8.35
|
Ohio
|
115
|
9.05
|
West
Virginia
|
583
|
7.88
|
Wisconsin
|
631
|
10.23
|
Sources:
American
Wind Energy Association, U.S.
Wind Power Capacity Installations by State,
March 2012; U.S. Energy Information Administration, Electricity
Data Browser
(2011 data)