Direct current and transformer: what they have in common

1. Step 1. Direct current — is used in — Inverter. An inverter turns a battery's direct current into alternating current.
2. Step 2. Inverter — is part of — Grid battery storage. Inverters.
3. Step 3. Grid battery storage — is part of — Electrical grid. Storage balances the grid.
4. Step 4. Electrical grid — has part — Transformer. Transformer substations.

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