Conservation: Same With Less.

Textbook meaning -- not in dictionaries yet:

Achieving an acceptable benefit at smaller energy cost.

Topics:
  Do values inform behavior.
  Does price make a difference.
  Extended examples list (reshaping your life?)
  "holistic hehavior modification.

Subsidiary implications
   Using renewable over non-renewable resources.
   Recycling limited materials.
   Reducing waste.

Biggest Problem: Values Informing Behavior

Driving Slower. The former Ohio 55 mph speed limit was an energy conservation measure. If "we" could convince ourselves that 55 was as good as 65 or higher, then we would accept "them" forcing automakers to produce slower cars or greatly increase taxes on faster cars.

SUVs once were the proof we are not there yet. Now it is that car i makers keep bumping up the performance that with improved engines keeps the mpg constant: e.g., hybrid 6-cylinder Camry has same mpg as non-hybrid 4-cylinder. Stranger, as SUV sales dropped in US, they came to Europe!

Could Prices Make a Difference

Petrol versus Car Prices. To control energy cost of cars, raise petrol prices and car taxes.
Petrol Prices, EU/liter Sep 2007
USDenmarkGBGreece
Unleaded0.541.401.371.02
Diesel0.571.271.390.99
Ref: Roadwatch.ie
2005 Toyota Corolla Prices (k euro)
Country US (0.8EU/$) DenmarkFranceUK
w/o Taxes 11.011.0 12.8 14.1
w. Nat. Taxes n.a.29.0 15.3 16.6
Ref: European Commission, DG Competition

The number of cars per 1000 residents is similar: about 470 (2005). In US, the distances driven are greater.

In the Home and Office

Illumination uses 5% of US energy. Delayed savings require current behavior modification.

Appliances

Initial actions in European copied enthusiastically in California have pressured manufacturers to design more efficient appliances. Ref: American Council on an Energy-Efficient Economy

Refrigerators in kWh/yr. Buy Top freezer.
18-21 cu.ft. Top:390; Side-by-Side: 555; Bottom:453-476.

 

Water Heaters How you use is most important.
   Halve water use: Water-conserving showerheads & faucets
   Insulate existing water heater: saving 25-40%.
   Insulate hot water pipes -- easiest in design.
   Lower water heater: 120 F fine, each 10% reduction save 4%.

Among types of heaters: demand, heat pump, indirect and solar are cheaper than conventional storage water heater.

Cooking demands require more behavior modification and abandonment of personal preference.

Dishwashers. Huge range in kWh/yr. Asko:194 to Frigidaire:329.

Clothes Washers. Confusing: best modified energy factor (MEF) can use 50% more water.

 

HVAC uses 20% of US energy -- home and work. Insulate.

"Holistic" Behavior Modification

The conflict is between
  Responsibility is the product of definite social arrangements.
and
  Each person/family responsible for conserving energy for world.

Long, determined, consistent policy of rewards and penalties to companies and individuals can produce substantial energy savings and ingrained changes in behavior without destroying the social fabric.

Staying the course is difficult; countries fall off the wagon.

In US, strong sense of individual personal freedom -- that sends rapidly changing messages to government -- works against definite social arrangements.



To cite this page:
Conservation: Same With Less.
<http://www.physics.ohio-state.edu/~wilkins.5/energy/Resources/Lectures/conservation-land.html>
[Sunday, 17-Dec-2017 20:07:10 EST]
Edited by: wilkins@mps.ohio-state.edu on Thursday, 01-Nov-2007 17:56:49 EDT