Overview
- The solar industry association projects roughly 500,000 new plug‑in systems for 2025, taking registered units past 1.2 million, with 413,400 new registrations logged by the federal network agency by December 12.
- North Rhine‑Westphalia reported about 82,600 new registrations through December 19 and roughly 239,000 systems in operation at that cut‑off.
- Average system output increased, leading to a marked rise in added capacity even as unit counts tracked close to last year’s totals.
- Owners must register within one month of commissioning, connection power is capped at 800 watts, surplus flows to the grid without payment, and landlords may not refuse installations without valid justification.
- Battery‑integrated kits are gaining traction, with homeandsmart rating the Solakon ONE storage unit 94/100 and PC‑WELT noting an onPower bundle of four 500‑watt panels plus Solakon ONE advertised at €899.99 plus shipping.