I don't get the Powerwall technology if you're on the grid, just pump your power into the grid when generating, then pump from the grid when you in need.I wasn't able to find the cost of the Tesla shingles, but 2 Powerwalls are about 20K installed. I'd be dead long before the payback. And really, if everyone in Ontario switched to these the price of electricity would rise exponentially to make up the revenue loss.
Agreed. It's at the early adopter stage now where financially it is a terrible choice but some people like to brag.I don't get the Powerwall technology if you're on the grid, just pump your power into the grid when generating, then pump from the grid when you in need.
Generally, you are correct of course, but in Tesla's case the losses are very minimal, considering they design it from the roof all the way down to the car battery. The efficiencies are very high on every component or point of conversion. It's a good system, but expensive.Any time energy is converted there's an efficiency loss. Quantitatively, I have no idea what typical numbers would be in a system that converts solar energy to stored chemical energy then converts that into a different cell of stored chemical energy. A lot? A little? I'm just speculating.
What are everyone's thoughts on buying new / used (1 or 2 year old), what kind of price point would you be looking for on a 2016/2017 Volt?
A big x2. I'm actually going through this right now with my sister. They've decided they'd like a Gen2 volt, but didn't plan to buy new, so my sister has been shopping. Here's 2 they were looking at.If you look at the prices for 1 or 2 year old used Volts, they're being priced pretty close to what a new one with the provincial incentive would cost out the door. One or two on this thread bought new and could chime in with their experience.
Agreed. Installing solar here with any intent to save money is a fools game - our electricity is cheap, no matter what the people of the province seem to think because it's no longer dirt cheap like it used to be.Don't worry about the Tesla shingles ... it will take long time before they become available up here. Of course the payback is not great up here whether its panels or power walls, because we enjoy relatively cheap price per grid kWh and our insolation rating is generally not greatest, plus 4 seasons with snow, ice ... etc. etc. But imagine you live in sunny area with no winter and expensive grid rates ... all of a sudden your position/payback gets a different positive spin on things.
What you described there is effectively exactly what the Volt does.caboose56 said:One thing I've often wondered is why don't we have hybrids like diesel locomotives? An ICE engine spins a generator at a constant (IE most efficient) rpm, and that in turn drives an electric motor for propulsion. Is it not possible or feasible to scale it down into something that would fit in a car? Or even a transport truck?
Such a common human trait. When friends of mine (from here) were living in Singapore, they laughed at the constant griping of Singaporeans about their high taxes. The highest income tax rate? 22% on income above (approx) $300000 CDN.People are kidding themselves thinking we are being gouged compared to many parts of the rest of NA, much the same as how a lot of Americans still think they are getting ripped off at the gas pumps but haven't looked beyond their own borders to realize that it's actually dirt cheap.
Still lots of companies out there doing MicroFIT installations and selling the electricity back to the province at the inflated prices ($0.50/kwh last I saw) the program allows. Companies installing these systems blanket neighbourhoods with flyers promising all sorts of riches to the homeowner.Strangely enough, my neighbour across the road just had his roof covered in solar panels yesterday, as did a couple houses further down. Must be still lucrative?
Well, locomotives aren't really "hybrids". The electric part of the powertrain is more akin to an electric CVT. They are not capable of storing electricity. When they are in "dynamic braking" they throw away the electricity through a bank of resistors to shed heat.One thing I've often wondered is why don't we have hybrids like diesel locomotives? An ICE engine spins a generator at a constant (read: most efficient) rpm, and that in turn drives an electric motor for propulsion. Is it not possible or feasible to scale it down into something that would fit in a car? Or even a transport truck?
The Volt's engine was chosen because it is a version of an engine that GM already had in their worldwide inventory of available engines ... the expected production volume didn't warrant building a special one just for that car.I am surprised they put such a large ICE in the Volt. Again, this is probably because it is designed as a transition vehicle to easy people into plug in vehicles. Something like a much better version of the i3 powertrain makes a lot of sense. Around a 30 hp constant speed engine to charge the battery. This is more than enough to maintain highway speed in north america. Rapid acceleration draws from the battery, cruising allows some power back into the battery.
Absolutely. Brand new I paid $31.5k out the door. That included $14k rebate and $1500 off from the dealer for getting the GM Visa which I will never use. To think anyone would pay $29k for a used on with about 40,000km on it makes no sense, because you are still paying tax on it, which will make it more expensive than a brand new one. I guess some people are paying that? If so, insert facepalm here. At first I looked at used Volts and I quickly realized as others have said, it's either get a used Gen 1 or get a new Gen2.If you look at the prices for 1 or 2 year old used Volts, they're being priced pretty close to what a new one with the provincial incentive would cost out the door. One or two on this thread bought new and could chime in with their experience.
I'm assuming the price of $44,000 that you used is for an LT model?A big x2. I'm actually going through this right now with my sister. They've decided they'd like a Gen2 volt, but didn't plan to buy new, so my sister has been shopping. Here's 2 they were looking at.
A 2017 Premiere with a whopping 47,000KM for $29,000. Probably actually sold in 2016 despite being a 2017 model year, given the milage.
http://wwwa.autotrader.ca/a/chevrolet/volt electric/whitby/ontario/5_38123248_20160115160939361/?showcpo=ShowCpo&orup=47_11_56&pc=L1N 6R1&sprx=100
And a 2016 Premiere with almost 40,000KM on it for $29,000 as well.
http://wwwa.autotrader.ca/a/chevrolet/volt electric/woodstock/ontario/5_37873879_20121116150533671/?showcpo=ShowCpo&ursrc=hl&orup=5_13_13&pc=L1N 6R1&sprx=-1
Both of these prices are patently insane as you can buy a brand new 2018 for $44,000, and after the $14,000 rebate, that's $30,000.
Why in all holy hell would you spend $29K for a 1 or 2 year old car with 40-50K on it when you can buy a brand new one for only a few thousand dollars more?