5 ms·
Looks like they both charge per min, not per kw/h. So you are at a disadvantage with a slow charging car?
by yyy888sss 7y ago
Looks like they both charge per min, not per kw/h. So you are at a disadvantage with a slow charging car?
- WanderPanda 7y agoProbably the outlet itself, not the power is the scarce resource, so that might be fair
- dade_ 7y agoThe problem is when the cost of the electricity is higher than gasoline, sometimes far higher. This is bizarre in Canada where the gasoline taxes are very high. I have a hybrid, so I use the cheapest option, but I also see high priced chargers sitting idle. The pricing methodology is all over the map. A new problem is the practice of free level 2 charging and charging money for fast chargers. The fast chargers sit idle and the free L2 chargers are all in use. Personally, I would pay, but my car only supports L1&L2.
- cmrdporcupine 7y agoFrom what I understand, there are energy regulator laws in various Canadian provinces that have made it difficult to charge per kw/h. Some combination of the two (time and energy) is ideal to prevent station hogging, though.
- loufe 7y agoI know it's a tad pedantic, so excuse me: When we're talking about energy, the units are kWh (i.e. kW * h), not kW/h. Watts/kilowatts are already defined as unit energy per unit time. In the case of watts, we're talking Joules (energy) per second. kWh is thus 1000 joules / second for 1 hour (3600 seconds), or 1000 * 3600 = 3 600 000 joules (3.6 MJ). kW/h exists, it just means something different - a rate of acceleration of changing energy (joules / s / s).
- OJFord 7y agoSurely households are billed by metered kWh? > Some combination of the two (time and energy) is ideal to prevent station hogging, though. That's a good point; in the extreme you wouldn't want someone sitting there trickle charging for ages when already charged. If it were up to me it'd be tiered like: t <=30min: £V / kWh 30m < t <= 2h: £W / kWh 2h < t <= 4h: £X / kWh 4h < t <= 8h: £Y / kWh t >= 8h: £Z / kWh where V < W < X < Y < Z, and probably per daily billing period rather than per charge, to avoid cheating it by unplugging and re-plugging if you were nearby at work or a motorway service station say.
- cmrdporcupine 7y agoUtilities can do it, but not non-utilities like charging stations.