Guernsey Electricity (GE) offers several different tariffs, and understanding them is important because they directly affect how much you save with solar and battery storage. Below are the current tariffs as of July 2025.
Core Domestic Tariffs:
Economy 12 Tariff
A split-rate tariff with two prices depending on the time of day:
Low rate: 12.26p
High rate: 26.45p
This is the most common tariff for homes, particularly with solar and/or batteries, because solar power offsets the expensive high-rate electricity first, and a battery can store low-rate electricity for use later.
Superheat Electricity Tariff
Designed for electric heating systems.
13.22p
Heat Pump Tariff
A dedicated rate for homes using heat pumps.
13.22p
Solar Buyback Rate
This is what GE pays you for any excess solar electricity exported back to the grid.
9.90p
Export is not the main financial driver of solar savings, but it is still a meaningful credit and part of the island’s transition to more locally generated energy.
Other Available Tariff
Standard Tariff
24.77p
A single-rate tariff where electricity costs the same at all times of day.
Commercial & Other Tariffs
GE also offers a selection of tariffs typically used by businesses and larger consumers:
Industrial Economy Tariff
• Split low/normal rate unit pricing, with additional charges based on capacity and time of year.
Maximum Demand Tariff
• Unit costs and charges structured by total demand and voltage level.
Non-Peak Tariff
• Lower unit rate for supplies that are disconnected during peak network conditions.
