From Tonga to Solomon Islands
When travelling from Tonga to Solomon Islands: Good news: all your Tonga plug types fit in Solomon Islands. Voltage is different (240V → 230V). Check your charger label; if it doesn’t list 230V you’ll also need a voltage converter. Frequency is the same at 50Hz.
Tonga
Solomon IslandsYour plugs
Type I
Fits
Accepted in Solomon Islands
Type I
1 of 1 plug type(s) match
You: I • Solomon Islands: I
Voltage: 240V → 230V
Different voltage
You may need a voltage converter.
Frequency: 50Hz → 50Hz
Same frequency
Plugs fit, but voltage differsAdapters you may need
Voltage differs; check for 100–240V support.
About electricity in Solomon Islands
Solomon Islands is 230V/50Hz with Type I sockets.
Grid & history
Solomon Power supplies Honiara and major islands. Diesel-dominated; the Tina hydropower project is set to dramatically reduce fuel dependence.
Availability
Reliable in Honiara; outer islands variable.
Sockets & hotels
Type I.
Energy mix
Tina hydro will shift the mix significantly.
Practical tips
- An Australian or NZ Type I adapter works in both countries.
- Voltage is the standard 230V, and modern chargers handle it without issue.
Frequently asked questions
- Will my Tonga plug work in Solomon Islands?
- Yes. Every Tonga plug type (Type I) fits in Solomon Islands sockets without an adapter.
- What plug type does Solomon Islands use?
- Solomon Islands uses Type I. The supply is 230V at 50Hz.
- Do I need a voltage converter for Solomon Islands when travelling from Tonga?
- Solomon Islands runs on 230V, while Tonga uses 240V. Check your charger label for a 100 to 240V rating; if it does not list 230V you will also need a voltage converter.
- Is the electrical frequency in Solomon Islands the same as Tonga?
- Frequency in Solomon Islands is 50Hz, the same as Tonga.