Electric car and refrigerator: what they have in common

1. Step 1. Electric car — has part — Inverter. An inverter powers the traction motor.
2. Step 2. Inverter — is part of — Uninterruptible power supply. An inverter.
3. Step 3. Uninterruptible power supply — is part of — Data centre. Backup power.
4. Step 4. Data centre — has part — Air conditioner. Cooling.
5. Step 5. Air conditioner — uses — Heat pump. An air conditioner is a heat pump that carries heat out of the room.
6. Step 6. Heat pump — works like — Refrigerator. A heat pump is a refrigerator that heats the house.

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