Charging Infrastructure

[Norbert]

Of course, there is this:

Department of Energy - President Obama Announces $3.4 Billion Investment to Spur Transition to Smart Energy Grid

In many cases, the grants include funding the installation of demand response controls (and/or "smart appliances").

http://en.wikipedia.org/wiki/Demand_response

The grants also include funds for EV charging stations.

[vfx]

The arguments I am reading say that asking for money is bogus. They will make more guaranteed profits. So they have to upgrade some transformers. It will happen slowly and start out in wealthier neighborhoods. Also the power companies have been pleading for EVs to charge at night to balance the day load and help pay for powerplants that are essentially half used.

[Norbert]

Also the power companies have been pleading for EVs to charge at night to balance the day load and help pay for powerplants that are essentially half used.

If the power companies were smart, they would sponsor EV companies and charging stations big time, to get the ball rolling.

[dpeilow]

Spanish Basque Country gets EV recharging network alongside some gas pumps — Autoblog Green

Charging stations at gas stations. There's a novel idea.

[Norbert]

http://cet.berkeley.edu/dl/Utilities_Final_8-31-09.pdf

However, some states such as California have implemented revenue decoupling for utilities. This means that profits are independent of the quantity of electricity sold and utilities are incentivized by the regulators to reduce the electricity consumption per customer. As such, selling more electricity is not an opportunity for all utilities, and for some operators it may actually be a threat.

This sounds like big problem to me. I'd think that it is critically important that the utilities have strong incentives to support EV charging, specifically at night time. I hope this is in the process of being changed.

[Serge]

Scare, scare, scare and scare.

Good to know this BEFORE the anti-plug-in crowd uses it for more fodder.

Or supposedly pro-plug-in crowd. Note Witzenburg's ABG article

Pacific Gas & Electric chairman Peter Darbee warned that even a fairly small number of PEVs using 220V chargers simultaneously in a residential neighborhood could overwhelm local circuits and cause blackouts, since each would be drawing as much power as an entire house. On the other hand, an EV charging on 110V house current draws only about as much power as a hair dryer, said Michigan Consumers Energy CEO David Joos.

[Alfred]

That only a few plug-ins in an area should be problematic is a bit hard to understand. It is currently quite normal that a whole neighbourhood starts cooking at about the same time with no problems. This is a pretty heavy load. To compensate, in some areas in Switzerland washing machines and dryers are switched off during those hours. In areas with weak wiring it should be possible to put those chargers on ripple control e.g. in parallel with water heaters.

[stopcrazypp]

http://cet.berkeley.edu/dl/Utilities_Final_8-31-09.pdf
This sounds like big problem to me. I'd think that it is critically important that the utilities have strong incentives to support EV charging, specifically at night time. I hope this is in the process of being changed.

I don't think this is too big of a problem. Right now they do this by having rates go up depending on usage based on tiers (100% baseline, 130%, 200%, 300%, 300%+ usage). But they have a plug-in/EV charging program where you can put your car on a separate meter (you can opt for a single meter instead too) and be billed according to your time of use (which is cheaper than normal except when on peak). This program still has the condition of rates going up with usage based on tiers, but it provides an incentive to use an EV, since it is cheaper than normal rates.

Here's how the tiered system works:
Understanding Baseline Quantities

Many people may misunderstand and think if you get pushed over to the next tier by an EV, you pay extra for your whole usage, but the way the system works is you pay extra only for the percentage of usage that is over.

[Norbert]

I don't think this is too big of a problem. Right now they do this by having rates go up depending on usage based on tiers (100% baseline, 130%, 200%, 300%, 300%+ usage).

Perhaps you know more about this than I do, yet the paper from U of Berkeley, which I quoted above, suggests that the fact that the consumer pays more doesn't mean that the utility makes more profit, and so doesn't necessarily provide an incentive to proactively support and encourage building a well-working EV charging infrastructure.

But they have a plug-in/EV charging program where you can put your car on a separate meter (you can opt for a single meter instead too) and be billed according to your time of use (which is cheaper than normal except when on peak). This program still has the condition of rates going up with usage based on tiers, but it provides an incentive to use an EV, since it is cheaper than normal rates.

That would sound good, however according to PG&E's website, dual meters are allowed only in 2 out of 7 cities (for example, perhaps ironically, not in San Francisco).

http://www.pge.com/includes/docs/pdf...air/ev4pt2.pdf

[ChargeIt!]

... however according to PG&E's website, dual meters are allowed only in 2 out of 7 cities (for example, perhaps ironically, not in San Francisco).

http://www.pge.com/includes/docs/pdf...air/ev4pt2.pdf

Norbert ... that's a very OLD document you linked to. (It contains references like " UL is performing tests on the equipment and hopes to complete the listing by the end of 1999.".)