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    Renewables pass coal in April

    I think the mix was in part a way to meet the objections that killing fossil fuels killed jobs. It is an attempt at meeting the economic objections. That said it got a stalled discussion going...
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    Going solar!

    Hmm, I wonder what accounts for the difference, maybe roof pitch Mine is 5/13
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    Going solar!

    Re snow I never clean my panels of snow, and it snows a lot on the ocean in NE MA Generally the snow sticks a day or two, with it sticking to the panel bottom at the end. I think that's because the panel is exposed to cold air underneath. I never have the snow fall off in a big lump. I think...
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    New to the forum

    Don't underestimate the look. It's not something I normally care about, for me it's performance first. But, after several years of people commenting on how nice the PH looks, one starts to notice That, and the staff at Woodstock are great. You get someone from the NH factory on the phone when...
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    Buying a house with leased solar system, need advice

    Re "Tesla says the ppa lease covers all maintenance and repairs including storm damage. " In my experience, pv panels are more durable than driveway asphalt... the driveway can crack the panels won't I've had a system for about 18 years., 11 for the first, 7 for the second. The first one was...
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    Portsmouth memorial bridge producing electricity

    Cool bridge... wonderful harbor Just across the way there is a Navy sub base. Down river is what looks like the worlds biggest salt pile. There are working tugs near the quais that are filled with restaurants. A good example of a working harbor UNH is a decent STEM school. I work with a shiny...
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    Buying a house with leased solar system, need advice

    A couple of things come to mind First find out how big the system is (this is measured in kW) . Parts price for solar panels are $1/w, and installed ~ $2-$4 per w My guess is it is not worth buying the panels. The largest size you see residentially is ~ 10 kW, with a more typical size ~ 5 kW...
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    Oak moisture after being down 15 years

    If it is underwater it lasts a looooooong time. There are Roman wood docks near the tower of London that have been there for ~1800 years The trick is to avoid worms. I have a civil engineer friend in New York who makes his living doing underwater inspections of bridges and docks. He tells me ...
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    Going solar!

    Re microinverter reliability... some anecdotal experience I've 18 enphase M215s for ~7 years, no problems yet I've another 10 enphase S280s for~ 3 years, no problems with those either
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    Going solar!

    Re" 20%+ efficiencies" Remember the limit on most residential systems is 20% of the busbar amperage on the main panel. My understanding is most residential 100 amp services have 200 amp bus bars... so that's 40 amps, Might limit how many of those efficient panels you can put up
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    Question on wood-burning insert or stove for NH home

    Re " ( I suspect some people try to store their wood in a pine covered glacial valley under a waterfall) ." More seriously, I suspect local climate plays a big role in the difference in time to season from one wood user to the next. Consider the difference between a chord of wood in death...
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    Question on wood-burning insert or stove for NH home

    On the hypothetical side I note my Woodstock Progress hybrid has heat shield in back, which reduces radiation into the hearth... If you are not irradiating the hearth, does the original argument hold?
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    Question on wood-burning insert or stove for NH home

    Re " The big caveat is unless you have a proven verified source of wood that has been properly stored and seasoned for two full years you are up for nothing but frustration if you install a stove this summer and try to burn this fall." Not my experience (northern Ma), nor is it the experience...
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    Question on wood-burning insert or stove for NH home

    Umm... my understanding is that the soapstone ones heat by radiation, and do not need a blower
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    Firewood quarantined

    Re deforestation Here in the Northeast I always heard the forests were torn up for farming, not wood heat. Here the story goes once people saw the good land in other parts of the country (during the civil war) they packed up and left for less stony pastures By the time I arrived in the second...
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    For those who have stacks of splits out in the snow long term.

    Northeast Massachusetts here I just cover the wood in the winter, mostly to keep the snow out I bring in a weeks worth at a time, and let it dry for a week under the stairs (2 bins, use one, let the other sit) to get off any surface moisture. My house is 20% RH in the winter, so that helps...
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    Going off grid

    Back when I was a kid , the local telephone exchange had three backups: two generators and a battery banks
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    Energy Savings Fails

    Bergey 1 kw wind turbine I put it up on a 40 foot pole in a neighborhood with 20 to 30 foot houses.. much too low. I thought being near the shore would help, it did not. During high winds it turns the rotor axis perpendicular to the wind, to prevent over speed. Problem was, it would not turn...
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    Going off grid

    Long post, so I’m not sure anyone has recommended this path Go half way.. grid plus off grid Back in the late 90’s early 00’s my electric company did not have net metering. What I did was create a shadow system (solar plus batteries) and rewired key power users in the house (tv, fridge, water...
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    Solar voltaic vs solar thermal

    You might want to read this article https://www.greenbuildingadvisor.com/article/solar-thermal-is-really-really-dead "A new analysis shows how much cheaper it is to heat water with PV modules than with solar thermal collectors"
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    Throw out your batteries - this is much more efficient!

    "The system would consist of a large, heavily insulated, 10-meter-wide tank made from graphite " ..." He has proposed that the tanks be made out of graphite. But there are concerns that silicon, at such high temperatures, would react with graphite to produce silicon carbide, which could corrode...
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    First year with wood insert, not really helping . . . please help!

    So do you know that the symbol ~ means approximately? Am I mistaken, but are you not arguing you can't believe the numbers in the first place, yet you call out the difference between ~73 and~74. So, I should have said, the insert has roughly ~44k btu/hr output, and the stove ~73k btu / hr...
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    First year with wood insert, not really helping . . . please help!

    So the insert has roughly ~44k btu/hr output, and the stove ~74k btu / hr And somehow you conclude the insert is going to be warmer... Wow Really, you can't argue with that, really ;)
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    First year with wood insert, not really helping . . . please help!

    Re "Claimed peak BTUS is your first ill informed mistake. Firebox size, then actual BTUs per hour is more realistic and common factors. Claimed efficiency is your second ill informed mistake. Efficiency is based on many factors, not controlled lab testing. More so, wood dryness, operator...
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    First year with wood insert, not really helping . . . please help!

    OK I'll bite.. what is the peak BTU/Hr of the insert you recommended. How does that compare to to a WPH ( 12-73 k BTU/hr *) For the possibly uninformed , the greater the BTU /hr, the hotter the house For that matter, what is the efficiency ( again 81% for the WPH *) Ignore these measures at...
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    First year with wood insert, not really helping . . . please help!

    Re "I had a conversation with the wife and she definitely does not want a free standing stove in the fireplace or in front so I guess that's out" That's too bad.. a stove would provide a lot more heat. Me I like the look of mine. I took my wife to the factory to look at some, and she fell in...
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    24/7 burners required.

    NE Ma , on the coast.. burn 2 chords a year, been doing it since 1984. During the shoulder season I use the heat pumps. Before I had them, I used propane backup. The propane has not turned on at all for the last couple of years Back when I had a smoke dragon it was about 4 chords The house is...