Hot shower seems to consume a whole lot of energy compare to some of the other household activities. Shorter showers and/or cold showers can easily equate to all of the other energy saving tactics combined.
Varies energy saving tactics in shower time equivalent
Use Power strip to eliminate energy sneaker = 4 seconds (50kWh, $7 per year)
Wash clothes in cold water instead of hot water = 18 seconds (225kWh, $32 per year)
Motion sensor = 21 second (reduce from 6 hours to 1 hour per night use – 270 KWh or $38 per year)
Replace regular 100 watt bulb to CFL = 1 minute and 41 seconds ((4hrs of use per day, 12 bulbs in a household: 1296 kWh, $180 per year)
Cutting shower short = 2 minutes (1,533kWh, $215 per year, a family of four would save 6132kWH, $860 per year)
Taking cold shower = 15 minutes (11,497 kWh, $1,611 per year)
(Calculations above are base on one second equals to saving of 12.775kWh or $1.79 per year, data derived from HECO brochure)
http://www.heco.com/portal/site/heco/menuitem.508576f78baa14340b4c0610c510b1ca/?vgnextoid=7c4e5e658e0fc010VgnVCM1000008119fea9RCRD&cpsextcurrchannel=1
101 way to Save
http://www.heco.com/vcmcontent/StaticFiles/pdf/101_Tips_7-15-08_FINAL.pdf
