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Just wanted to say: very cool.

Since I see that you were powering a space heater:

Conductive heating/cooling is the future. Why heat an entire space when you can buy an electric mattress pad and just heat your bed?

Soon enough we'll have cheap and convenient wearable heat-pumps with individually controlled dials rather than senselessly heating/cooling entire spaces.




It's an interesting idea, but if your house has decent insulation to minimise heat loss (e.g passivhaus https://en.m.wikipedia.org/wiki/Passive_house) then it's perhaps more practical just to hear the entire space.

Oh, it helps too if your house is not a mcmansion with vast internal spaces.


I have a large house and it uses both active and passive solar. Even the trees are situated to give ideal results.

If you're curious, it is an envelope house and oriented to make maximum benefit with the Sun. The second floor overhangs the bottom floor which blocks the peak solar energy from hitting the windows.

It produces more energy than it uses, and also uses a couple of turbines. There is a room in the basement that is dedicated to controlling it all and is where the battery banks are all stored.

Caveats:

I didn't do much of the design myself, except the initial drawings and consultation.

I didn't install any of this myself. I'll poke at lots of things, large voltages are not one of those things.

It isn't a matter of being ecologically sound, it is practicality. I lose grid power both frequently and with long durations. I like my modern conveniences. Solar and wind were my options, though I have a whole house generator if/when they aren't adequate.

It isn't ever going to be financially a cheaper option. Never. I'm never going to break even, it will never cost me less than mains power. This is also because I will continue to be on the upgrade cycle, my installer happily lets me trade my old stuff in.

It is, however, much less expensive than homes with similar sizes. The house is on zones and heated according to use. I have no AC as it isn't required. The passive solar and the external temperatures means it never gets very hot here.

I'd be happy to answer questions, but I really don't know much about it. I had it all done for me and barely understand it. There is an in-place monitoring service that tells me what is going on, but I keep that firewalled from the 'net. It lets me see what is doing what, how much energy is stored/produced, what gets pushed out to the grid, etc...

As I said, it's not meant to be green nor will it ever be cost effective. I've only produced more energy than consumed for the past few years. I often have no mains power for a week at a time. Using a generator for that long wasn't really conducive to my lifestyle.

The installation wasn't cheap. I live near Mt. Washington, on the side of a mountain, and wind is a serious issue and I get 3 to 4 meters of snow every year. The best I can offer is pictures. I haven't invested much energy into learning the details and I have absolutely no intentions to try working in it myself.


Sounds very interesting and would appreciate you sharing the pictures you mentioned. theluxcrib [at] gmail [dot] com


I'll try to do you one better. I use Maine Solar, out of Starks, Maine. They are over next to Harry's, which is where the weed festivals started and continue.

Anyhow, I have to head down that way during the coming week. I will see if I can get him to write something up. I can kind of explain it, but I don't know all the details. I know what to do with it and how to verify that it is not pushing energy to the grid during an outage, for example. However, that trips automatically and I have no idea how - but I do know how to go check the manual switch to ensure it is off.

I know, for example, that it synchronizes with the mains before it comes back online and grid power becomes available, but I don't know how that is specifically done.

I know how to turn the turbine blades and lock it into place when it gets windy enough. I hit two switches. I guess they will self-protect, but I've never noticed it doing so and haven't any idea the specific mechanism. If gusts are up past 45 MPH, I just turn the turbines sideways and a switch locks the brakes on it.

I have a huge bank of batteries, they are just expensive car batteries. They are from a brand called Optima, I do know that. I don't change, test, or maintain them myself. I will be converting to a number of Power Walls, but I am not sure how many I will need or what the costs will be - or when they will be available.

So, I'm only good for general information. I will see if he will give me a list of parts and how it is all configured. I'm sure he will, it just will eat up some of his time. There is a bunch of literature tucked into a cabinet in the room. I'll see if I can make something coherent with that, pictures, and whatever he can supply me with for more info.

I do know he has pictures of what he has done here. He may have them on his site. He did have some pictures included in some brochures he was handing out. Either way, I'll try getting a bunch more info for you. I should probably at least learn more about it myself. I've just been pretty lazy about it and lots of electricity scares me.


I for one prefer to not have my pipes freeze solid and burst, so I heat my house to a minimum of 60 all the time, and the "unheated" basement (which has no vents from the furnace, merely the furnace itself and radiant heat from the ductwork) keeps at about 50, safely far from freezing.


>Why heat an entire space when you can buy an electric mattress pad and just heat your bed?

One reason is that breathing cold air overnight is bad for your health. IIRC a recommendation is to keep it above 16C.


In Scandinavia the lore is that the cold is good for sleeping. They stick their babies outside to nap even when it is below freezing:

http://www.bbc.com/news/magazine-21537988


Got a citation on that?


Apparently, it was the past too. I don't know many young people that use electric blankets. Plenty of stories about parents or grandparents with freezing homes using them though.




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