Skip to content

Making energy simpler, cheaper, greener

Green gas and electricity supplier.
Rated 4.8 out of 5 on Trustpilot.

Green energy for all

We provide our members with 100% renewable electricity from solar, wind and hydro. And our gas is 100% carbon neutral too. We offset the emissions from the gas we supply by supporting carbon reduction projects around the world. Plus, we're the biggest buyer of green gas for homes in the UK so a chunk of our gas mix comes from renewable sources, like food or farm waste, too.

Our generators

We buy our energy from renewable generators across the UK. Wherever possible, we have direct relationships with these generators to purchase their electricity. We buy the rest from the wholesale market. We source our electricity from wind, solar and hydro, and work with generators of all different sizes, from small-scale sites like Tyn y Cornel Hydro in Snowdonia to large-scale off-shore wind farms.

The best kind of energy

Which do you choose: energy that harms the planet or energy that doesn't? Exactly. 100% of Bulb's electricity is renewable. And our gas is 100% carbon neutral. Win win.

By going green, the average Bulb member lowers their carbon impact by 3.4 tonnes of CO2 a year. That's the hard work of around 1,689 trees.

Source: Data provided by Electricity Info, an independent energy information site

Trusting your energy supplier

For us, giving great service is first, last and everything. We're chuffed to be rated 4.8 out of 5 with over 10,000 reviews on Trustpilot.

trustpilot logo, rated 4.8 out of 5

One low tariff for all. Phew

Too many energy companies confuse customers with lots of complicated tariffs. We like to keep things simple.

With Bulb's single tariff, you know you're getting the best possible price for your energy. In fact, we're one of the cheapest suppliers on the market, renewable or not.

Source: Data provided by Energy Helpline, an independent energy switching site
Based on typical annual consumption of 2,900 kWh electricity and 12,000 kWh gas in the Eastern region

Only 2 minutes to switch and we'll take care of the rest

A dashing clock

Leave it to us

We'll let your supplier know you're leaving. All you need to do is send us a meter reading.

A light bulb

You'll always have power

Your energy supply will never be cut off while you're switching to us.

A chainlink being broken

We'll pay your exit fees

If your old supplier charges you for leaving, we'll refund you.

Keep on top of your energy

Understanding your energy usage helps you to lower your bills, so we make it easy for you.

Keep on top of your energy with your Bulb Account. Sign in online, or download the app. You can track your usage, submit meter readings and check your balance.

And as part of our Community you can chat with other members and share ideas about Bulb. Including how we can improve - we know we're not perfect.

Doing the right thing

As a certified B-Corp, we're working to demonstrate how business can be a force for good. For every new member that switches to Bulb, we donate £2 to Bulb Foundation which makes grants to charities and social enterprises tackling the climate crisis head on.

Only 2 minutes to switch and we'll take care of the rest

As featured in

The Times

"Bulb bucked the trend"

Wired

"Challenger green energy firm"

Fast Track

Named one of ten "Disruptors to Watch"

The Guardian

"One tariff that's fair for all"