
Heating Up
Electric Home Heating Could Outpace
the Competition
Using electricity for home heating was no longer
a brand new idea in the early 1980s, but it was still unusual,
and in approving state government’s 1983–85 biennial
budget, the Wisconsin Legislature resolved to keep it that way.
Passed was a budget amendment made it illegal to build an electrically
heated residence unless it met a “superinsulation”
standard that lawmakers deliberately left undefined.
Times and technologies have changed, but the
law hasn’t. The Wisconsin Department of Commerce, which
has responsibility for setting and enforcing building codes,
abides by administrative rules tailored to the mandate of the
1983 budget bill. Thus a legislative posture adopted to make
a largely symbolic statement against inefficient energy use
now serves to deter application of technologies that can offer
homeowners better energy efficiency and affordability than the
officially favored alternatives.
In a period of high and rising energy prices,
this has not gone unnoticed. The Commerce Department is currently
engaged in a wide-ranging review of state building codes, to
be completed by this fall. In the first week of January electric
cooperatives, home builders, geothermal energy providers, and
energy efficiency specialists submitted a list of changes they
hope to include among any code revisions the department chooses
to propose when its review is done.
Today, It’s Conservation
When the technology became generally available
in the early 1960s, electric home heating meant baseboard units
consisting of glass-covered printed circuits. Since the apparatus
would likely replace an oil- or even coal-burning furnace, cleanliness
was a significant virtue, as were stable temperature and humidity.
Durability was not. The glass panels required frequent replacement
due to repeated breakage under heavy heat stress.
Today’s electric heat is something else
altogether. A typical modern system might include a heat pump
borrowing warmth from groundwater and capable of heat-production-to-electricity-consumption
ratios as high as three to one.
Supplementing the heat pump might be a 100-percent
efficient electric thermal storage (ETS) unit using high-density
ceramic bricks to retain heat from power generated during the
night or at other low-demand hours. This enables the homeowner
to buy electricity when it’s cheapest and store the heat
to use when it’s needed, without adding one watt to a
utility’s peak demand.
If this sounds like the very definition of
conserving energy, remember that to policy makers of the 1970s
and ’80s, electric heat sounded like something that would
make power plants run harder. So the 1983 budget directed the
Public Service Commission and Department of Industry, Labor
and Human Relations (DILHR) to develop regulations setting a
tougher energy conservation standard for electric heat than
for other available choices.
The resulting administrative rules amounted
almost to a state directive to use natural gas. They call for
greater resistance to thermal transfer in electrically heated
dwellings, translating to restrictions on window areas and a
roughly 15- to 17-percent increase in insulation requirements.
They also use the low threshold of three kilowatts input to
electrical heating equipment—sometimes called “the
two-hairdryer rule”—to bring a structure under compliance
requirements for electric-heat regulation.
Blocking Credits, Renewable Choice
To accommodate forward-looking technologies,
the rules allow a homeowner using high-efficiency heating equipment
to qualify for credits against heat-loss limits, but ETS units
and plenum heaters aren’t on the approved list. And while
geothermal and air-source heat pumps are on the list, the state-approved
computer software in general use by Wisconsin building inspectors
simply fails to properly credit the efficiency of any system
not based on natural gas. Thus many building plans that would
result in enhanced energy conservation are doomed by a known
error to fail regulatory review.
Assuming those hurdles are overcome, a person
who decides to use electric heat must still face significant
regulatory costs. An established homebuilder active in reform
efforts estimated last summer that existing regulations add
two dollars per square foot to the cost of a new home. Of course
the recent rise of natural gas prices (see page 14) wasn’t
a factor in that estimate; it’s a separate reason why
regulatory prodding to avoid electric heat can make life more
expensive.
The irony of rules discriminating against
heating technologies that favor energy conservation is hard
to overstate. Of all energy producers, only the electric power
industry is required by law to derive a percentage of its output
from renewable sources. Wisconsin residents who heat their homes
electrically are using the only heat source that must have a
renewable production component, and they’re penalized
for that choice.
David Jenkins, manager of the Wisconsin Electric
Cooperative Association, credits the Department of Commerce—which
supplanted DILHR in the mid-1990s as the regulatory authority—for
being receptive to reform of the outdated rules. Especially
with today’s natural gas prices, Jenkins says, decisions
about home heating should be left to the consumer.
“Homeowners are smart enough to evaluate
costs and benefits of various heating systems,” he says.
“We are not advocating any particular heating system,
we simply want all heating systems to be treated fairly.”
Last fall, stakeholders presented information
to the Energy Conservation Code Council and the Uniform Dwelling
Code Council, two appointed bodies that give policy advice to
the Commerce Department. By the end of 2006, the department
is expected to submit a package of rule changes to the Dwelling
Code Council for its approval, followed by public hearings.
A Bill Comes Due
It’s highly doubtful that the 1983 legislative
action to discourage use of electric space heating had any detectable
effect on Wisconsin’s energy situation at the time. But
now it’s becoming a different story, as a two-decades-old
policy prescription exemplifies the continuing practice of systematically
narrowing our energy choices, even as serious pocketbook issues
evolve.
Jenkins, a vocal advocate of diversified energy
sources even before natural gas got expensive, doesn’t
beat around the bush. “Government shouldn’t be picking
winners and losers, especially now, with energy prices so volatile,”
he said recently.
He pointed out a letter to the editor—in
that same day’s newspaper—from a Madison resident
saying her gas bill had climbed more than $100 per month above
the previous winter’s “barely manageable”
costs. She worried that it might be necessary to “turn
the thermostat down even lower” than the 62 degrees where
she had it set.
“Because of what government’s done
these past 22 years, promoting heavy reliance on natural gas,”
Jenkins said, “we’re going to pay a price.”—Dave
Hoopman