buickanddeere
Super Member
Higher voltage is important. It reduces the current to obtain the same amount of power . Wire/cable/conductor sizes are reduced .
I'm not into battery-powered stuff except my DeWalt 20V tools, so bear with me. With the info given on the Greenworks site (and a brief stay at a Holiday Inn Express) it would appear to me that the 82V battery would need an output of around 55A just to run the blades at full load for the 4 hours run time. That's 4.5 kWh each of the 4 hours (based on the three two-horse motors for the blades). I didn't see anything regarding locomotion, so maybe you need to pull it with a diesel tractor. Without more info, my guess is the battery would need to be an 82V, 18 kWh, aka 82V, 220AH to provide power for the blades alone.
The whole thing looks kinda hokey. The deck is described as both 52" and 60", depending upon where you look. Of course it does state that it is an electric start
............................Your power estimate for the blades assumes worst case full power tallest grass all the time..........................................
I don稚 know what a "3.6 P.V. system" is. $10,000 buys a 6kW system before government subsidies or cost of installation.
I found the paper work from the utility system when it was installed in 2014. It says "This letter is formal notification that the 3.375 KW Solar Electric Generating facility tied to meter XXXXXX" etc has met all the requirements to interconnect and operate in parallel with S.D.G.&E's electric system.
I'm a low tech redneck and did mis-state the KWH in my original post but this is what I have. The $16,000 price was after all rebates and installation.Things must be a lot cheaper where you live. We got several quotes on our system and the one we bought was near the middle of the group.
I'm sorry this doesn't fit in with your argument but it is my experience.
Our net metering is like giving any power not used away, we pay $.36 per kWh and they pay us about $.05 for what we sell back to them. Now they need another rate increase .I hope someone comes up with an affordable battery system soon but I don't think I will live to see it.
I'm not into battery-powered stuff except my DeWalt 20V tools, so bear with me. With the info given on the Greenworks site (and a brief stay at a Holiday Inn Express) it would appear to me that the 82V battery would need an output of around 55A just to run the blades at full load for the 4 hours run time. That's 4.5 kWh each of the 4 hours (based on the three two-horse motors for the blades). I didn't see anything regarding locomotion, so maybe you need to pull it with a diesel tractor. Without more info, my guess is the battery would need to be an 82V, 18 kWh, aka 82V, 220AH to provide power for the blades alone.
The whole thing looks kinda hokey. The deck is described as both 52" and 60", depending upon where you look. Of course it does state that it is an electric start