Solax X1-3.6BDC SP Inverter Boost

Inverters

Solax X1-3.6BDC SP Inverter Boost

Single-phase 3.6kW string inverter with integrated DC isolator. Solax X1 series for Solax ecosystem.

8.4
Great

£357.96 ex VAT

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How it scores

Peak Efficiency(25%)
8.5/10
Power & MPPT Handling(20%)
8.4/10
Battery & Ecosystem(20%)
8.3/10
Warranty & Reliability(20%)
8.5/10
Value for Money(15%)
8.0/10

Scores based on published manufacturer specifications and weighted criteria — not lab testing. Methodology.

Specifications

Phase
single
Hybrid
No
Max kW
3.6
IP rating
IP65
Weight kg
10
Mppt count
2
Dimensions mm
370x300x150
Warranty years
10
Optimiser required
No
Peak efficiency %
97.6

What I noticed

Solax X1 series is the entry-level single-phase string inverter range from Solax — designed to pair with the Solax X-Hybrid range or operate as standalone solar-only. The X1-3.6BDC is the 3.6kW boost variant with integrated DC switch.

Solax has gained significant UK market share in the last 2-3 years on the back of strong battery integration with their Triple Power battery range. Single-app monitoring via the Solax Cloud platform.

Who it suits

UK installs planning the Solax ecosystem (Triple Power battery range + X-Hybrid inverter). For solar-only installs, this is a competent mid-tier option at a reasonable price.

What I'd watch for

Solar-only — for battery integration use the X-Hybrid range. Solax UK installer familiarity is moderate and varies regionally. Cloud monitoring depends on stable WiFi connectivity.

X1-3.6BDC SP Inverter Boost head-to-heads

Side-by-side scoring vs each alternative in our shortlist.

Other Inverters on my shortlist

Read next

Background reading and decision-tree pages that put this product in context.