Safety is at the heart of everything we do. The UK’s gas sector has been keeping millions of households safe and warm for decades. Today, 22 million homes in the UK use natural gas safely because of certain measures the gas industry takes. The same will happen with hydrogen.
Every form of energy including natural gas and electricity has its own specific risks which are identified and managed. The gas industry makes gas networks safe by design, has an excellent safety record and are experts in managing the risks associated with natural gas. We’ll apply the same safety principles, priorities and safety measures – including any new measures if needed - to hydrogen gas to ensure a safe network.
An important part of this is engaging with the Health and Safety Executive (HSE), Great Britain’s national independent regulator for workplace health and safety, as part of the transition from natural gas to hydrogen.
Here are some of the safety measures* we’re planning to use for our world-first green hydrogen heating trial – H100 Fife:
- Excess flow valves will be installed in every home using hydrogen. These are designed to limit the flow of gas below the amount needed to cause a dangerous build-up.
- Odour will be added to the hydrogen, so that it has the same familiar smell of natural gas.
- Ventilation is important for a healthy home and allows potential small leaks to disperse safely. We may need to add ventilation to homes in the H100 Fife trial.
- Hydrogen meter boxes will be installed outside.
- Competent Gas Safe Registered engineers trained specifically for hydrogen locally at Fife College will inspect homes regularly throughout the course of the project.
* Measures will be identified during home surveys and will vary by property.
Demonstrating our commitment to safety
Safety is fundamental. Before H100 Fife can go ahead, the Health and Safety Executive (HSE) needs to be satisfied that the trial will be run safely..
SGN is pleased to announce the receipt of a Letter of Assistance (LoA) for H100 Fife from the Health and Safety Executive (HSE). This follows the independent assessment of our Safety Dossier, which details how 100% hydrogen will be produced, stored, distributed, and used safely in homes for the H100 Fife trial.
No carbon monoxide
Carbon monoxide (CO) is a highly poisonous gas which is produced when fossil fuels don’t burn properly. You can’t see it, smell it, hear it or taste it – that’s why it’s known as the ‘silent killer’. For help and advice on CO safety, click here.
One great benefit of hydrogen is that it doesn’t produce any CO at all, so it eliminates the risk of CO poisoning from appliances which causes illness and sometimes even death in the UK every year.
NOx emissions
NOx refers to nitrogen oxides, a group of gases primarily composed of nitric oxide (NO) and nitrogen dioxide (NO2).
The burning of any fuel, including hydrogen can produce NOx. Sources of NOx include buses, planes, trains, gas boilers and gas hobs and cookers.
You can find out more about NOx/NO2 emissions tests for the appliances being used as part of the H100 Fife project here.