The Netherlands is Europe’s biggest residential retrofit story: salderen ends 1 January 2027, and a million solar households need new maths. Feed-in charges differ by hundreds of euros per supplier per year; grid congestion now reaches residential streets; the battery decision hinges on your pre-battery self-consumption rate.
Buying in the Netherlands: read your self-consumption from your inverter app before any sales conversation — below 30%, a battery is the easy yes; above 45%, compare supplier feed-in terms first. Size 5–10 kWh for retrofit. Get post-2027 feed-in terms in writing. Beware call-centre pressure: 44% of postponed buyers cite aggressive sales calls.
The rulebook that moves your money: salderen ends 1 January 2027; feed-in charges (terugleverkosten) vary by supplier and are now a switching criterion; grid congestion letters expand to more districts, framing home batteries as congestion relief; dynamic contracts with quarter-hour pricing are mainstream and battery-ready.