It's intermittent. Solar energy is only available when the sun is shining.
It's low efficiency. It requires large areas of land.
It's not completely free of environmental impact. Ultrapure polysilicon is now scarce.
It's high cost.
You must climb your roof to wash it off. Just ask Ed Begley, Jr.!
You woke up this morning full of vim and vigor, ready to tackle the world of home energy efficiency. Of course, your first dreamy thoughts were: is this major solar flare going to knockout electricity in the midwest power grid, and then, if Fermilab has found proof of the Higgs Boson, will I be able to fully explain the phenomena of convection and chimney effect to people? After your morning coffee, the reality check sets…Continue
It really wouldn't be fair not to share this timely report, which was aired in major cities last night:
It describes a buying program which resembles other rewards programs. The website is called Neighbor Oil. They offer discounts on oil and propane, based on a points system.…Continue
Added by Tom Delconte on March 6, 2012 at 7:11am — No Comments
Fuel poverty, that is to say people who can't afford to heat their homes, is at all time high levels in the U.S., Canada, and the U.K. It causes at times a terrible human condition, death, which is estimated as 8,000 people per year in the U.K. There have been calls for immediate "super energy efficiency." No doubt the rest of the world is affected, also.
Heating oil prices in the U.S. are topping $4.11/gal(up), propane $2.90/gal(up), natural gas…Continue
... shhh, don't tell ! I recently ran across this functionality on Accuweather, after doing a google search for something or other:
If you click on the about button, you essentially get a zero explanation. Monitoring it for several days, it seems to prioritize sunniness, then temperature, then who…Continue
It's inexplicable as to why people are sluggish or fearful in regards to getting a better rate on their electric supply rate!
Only 2% of people were thinking of changing their electricity or gas supplier, down from a third who were interested before the market was opened up statewide in 2006.
The study and recent survey also looked at how many people had already changed suppliers – just 2% for gas and 3% for electricity. You might almost call…Continue
The finer points of thermostats are actually much more complicated than any published article covers. You must study each premium thermostat individually. If it does not have settings for swing, deadband, fan delays, early recovery, proper setbacks, etc., it's not really of good use. Dual fuel setups are even more complicated because you must decide whether to use the thermostat or the fossil fuel controller function for balance point control. You must also…
Many pros already know that a standard upgrade is to install a Honeywell IAQ thermostat! That's why you simply must take a look at this analysis on the Thermostat Wars, Honeywell versus Nest, which now threaten to pre-empt even the infamous browser wars, and cause consternation within the industry:…Continue