A major player in the EVSE market has kindly consented to provide some technical training for the electrical installation tutors at a training centre where I often tutor part-time. I imagine it is not entirely motivated by altruistic considerations but at least it gives an opportunity for the tutors and myself to get some kind of grasp on the various products on offer and where this particular manufacturer sees the direction of travel for EVSE. I am already aware that the company is moving away from products that rely on the installation of earth electrodes in PME situations and are placing considerable focus on load management. Is there any particular question that you would ask them given the opportunity?
Andy, the load management idea is impossible without central control. Let's say a computer manages a City. There is a computer problem (oh and don't say it is not possible, or even avoidable, in reality, it is not). All the cars end up not charged at all at the end of the day. No one can go home. Who fixes that problem? The cost of making it "unlikely" is very high, as is the cost if it happens. Who pays, well it won't be the system manufacturer!
In order for this to work, we need to know, in advance, the total power availability, and the maximum possible demand by other things except for car chargers. Tell me within say 5% the minute by minute availability from wind and solar. No one can, and this is why we need spinning-reserve.
I for one am not happy for anyone to control exactly how much power I may have. I will not be subject to someone else being willing to pay more or less, or in fact to have my freedom to be controlled by anyone, without my consent. That is communism with a dictator. Is that what you really want? Smart meters are a step in this direction which I find unacceptable, therefore I do not have a smart meter.
Andy, the load management idea is impossible without central control. Let's say a computer manages a City. There is a computer problem (oh and don't say it is not possible, or even avoidable, in reality, it is not). All the cars end up not charged at all at the end of the day. No one can go home. Who fixes that problem? The cost of making it "unlikely" is very high, as is the cost if it happens. Who pays, well it won't be the system manufacturer!
In order for this to work, we need to know, in advance, the total power availability, and the maximum possible demand by other things except for car chargers. Tell me within say 5% the minute by minute availability from wind and solar. No one can, and this is why we need spinning-reserve.
I for one am not happy for anyone to control exactly how much power I may have. I will not be subject to someone else being willing to pay more or less, or in fact to have my freedom to be controlled by anyone, without my consent. That is communism with a dictator. Is that what you really want? Smart meters are a step in this direction which I find unacceptable, therefore I do not have a smart meter.
