Hmmm, kinda lame article – it mentions “efficiency” – then fails to define it (it can mean different things to different people) and fails to actually compare the efficiency of Level 1 and Level 2.
From a pure “electricity in to the charger -> electricity stored in your EV battery” there is likely no significant difference between Level 1 and 2. My guess is that Level 1 is in fact slightly more efficient – but the different is so slight as to be irrelevant.
If you want REALLY efficient charging, consider solar-coupled DC-only – in those systems, the DC electricity from the solar panels is sent directly into the EV, without any AC conversion. That can be significantly more efficient than traditional AC-based charging.
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Hmmm, kinda lame article – it mentions “efficiency” – then fails to define it (it can mean different things to different people) and fails to actually compare the efficiency of Level 1 and Level 2.
From a pure “electricity in to the charger -> electricity stored in your EV battery” there is likely no significant difference between Level 1 and 2. My guess is that Level 1 is in fact slightly more efficient – but the different is so slight as to be irrelevant.
If you want REALLY efficient charging, consider solar-coupled DC-only – in those systems, the DC electricity from the solar panels is sent directly into the EV, without any AC conversion. That can be significantly more efficient than traditional AC-based charging.