"Remember many of those credits were also intended to fix problems related to rising fossil fuel costs in the mid 2000's and then the "Great Recession" in 2008. Fuel costs have dropped with onset of cheap natural gas - and…"
"Bob, there is actually still quite a bit of room for improvement in the boxes. Look for SEER's of 20-30+ in the next three or four years Furnaces also have room for efficiency improvements - remember at present time the…"
"Curt are you sure they are DC? The original transformer if I remember correctly was 12VAC 180VA. That is about a 15Amp max 12volt AC circuit.
Check and see if you can get service manual either online or from manufacturer.…"
"We also might be less than ten years from the start of significant adoption of microCHP. CHP being Combined Heat Power. NRG is looking at Dean Kamen's microCHP that uses stirling engine to run generator and produce hot water. There…"
"About 125 years - and they were deemed government property that was no longer needed and the government in power "slighted" the buildings. (wrecking ball)...
Oh yeah, as with many government projects they were considered to be quite…"
"Scott, in fact if you look at the sankey diagrams from Lawrence Livermore. They have energy flows and carbon flows available ( https://flowcharts.llnl.gov/ ). I believe in the archive they also have a study…"
"Not everyone will put solarPV (or a distributed generation) on their property. There always will be instances where the property doesn't have the available resources.
So consider the following case if a majority can put batteries on…"
"I don't know of any coal plants that run that low efficiency even when transmission lines are considered. Transmission line losses are about 1%/100 miles. So transmission losses might be 4%, neighborhood losses a couple of more.…"
"Hydro has long been considered renewable - the issue is it it low impact or high impact. Wind farms that are in the paths of bird migrations should be considered high impact. Hydro dams that implement fish migration are called high…"
"The percentage of energy generated using coal is dependent on your region of the US and the transmission/generation operators in that region. In Washington probably 90% of our electricity is from renewables with maybe 10% from coal.…"
"Our local utility experimented with TOU about eight years ago. The back away from it because they didn't see consumption reduction as many people propose, the billing processes become more complex, customer services become more…"
"Several of this years Solar Declathon entries ducted their HPHW and used the heaters as part of their active cooling/de-humidification systems. Cooling portion worked okay for most - but early October had some strong dry desert wind and there…"
"Kurt, Efficiency of the current HPHW drop off as you raise the tank temperatures. Perhaps in future generations you could do that and store extra heat. If you are looking for a demand response solution with heat storage -- it might…"
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