But analysts said some customers might choose to switch suppliers.

Customers have virtually ignored the chance to switch suppliers, however.

Domestic customers, who are not allowed to switch supplier, could end up with higher bills to meet those costs.

Full market opening began in 2006 e.g. with the opportunity to switch supplier.

In some cases rental fees are being introduced if customers switch suppliers.

So we switched suppliers again and are making savings without paying any additional meter charge.

In particular, the package proposes to give consumers the right to switch supplier at any time and to have free access to their consumption data.

I've always refused to switch supplier from whatever was the original nationalised one, on general principal.

But they are not expected to switch suppliers.

MPs were told that 40% of those who switched suppliers on the doorstep failed to end up with a better deal.