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Choosing Plug-In Solar Kits in 2026 — comparing the top 3

Balcony and plug-in solar systems compared on generation, price, warranty, and ease of connection.

Compiled by Sepehr · Last reviewed May 2026

6.4

Thunder Energy Storm 360W Balcony Solar Kit

Entry-level 360W flexible-panel balcony kit generating up to 320 kWh/year, with G98 DNO notification handled by Thunder Energy.

£499.99 inc VAT

6.8

Thunder Energy Storm 710W Balcony Solar Kit

Larger 710W flexible-panel balcony kit generating up to 640 kWh/year across 4 panels, electrician-connected with G98 notification included.

£649.99 inc VAT

7.0

EcoFlow STREAM Balcony Solar System

Modular balcony/garden/roof-mount solar system available in 500W/800W/900W/1040W panel configurations with EcoFlow's STREAM microinverter.

£549.00 inc VAT (sale, was £678.00)