Power is the invisible lifeline of every event. Whether it’s a music festival, corporate conference, wedding, or large-scale sporting occasion, electricity drives almost everything: lighting, sound, catering, security, and even crowd management systems. Without safe and reliable power distribution, even the most well-planned event can grind to a halt.
But power at events doesn’t come without risks. Temporary electrical systems, if not managed correctly, can cause power outages, equipment failure, fire hazards, and even fatal electric shock. For organisers, the responsibility goes beyond keeping the lights on — it’s about complying with UK law, protecting attendees, and safeguarding your reputation.
This article explores why safe event power distribution in the UK is critical, what the law requires, and how event organisers can make sure their electrical systems are designed, installed, and managed safely.
Why Power Distribution Matters in Events
Electricity is so integral to modern events that it’s easy to take it for granted. Yet, unlike permanent electrical installations in buildings, event power systems are temporary, high-demand, and often exposed to challenging conditions such as outdoor weather, uneven terrain, or large crowds.
Some common challenges include:
- Variable demand: From stage pyrotechnics to catering ovens, electrical loads can spike suddenly.
- Complex setups: Power must be safely distributed across multiple zones (stages, bars, food vendors, production areas).
- Outdoor risks: Rain, mud, and weather can make temporary systems more vulnerable to faults.
- Public safety: Cables, generators, and distribution boards are often near crowds, requiring extra precautions.
A poorly designed system can not only lead to inconvenience but also expose organisers to serious legal and financial consequences.
The Legal Framework: Electricity at Work Regulations 1989
Under the Electricity at Work Regulations 1989 (EAWR), every employer, contractor, or organiser has a duty to ensure electrical systems are safe. Specifically, Regulation 16 requires that work on electrical systems must be carried out only by competent persons.
For event organisers, this means:
- Electrical installations must be designed and maintained to prevent danger.
- Cables, generators, and distribution boards must be suitable for temporary use.
- Only competent and qualified contractors should manage electrical systems.
Failure to comply can result in enforcement action by the Health and Safety Executive (HSE), fines, or even prosecution.
Competence: Appointing the Right Contractor
The single most important step you can take is to appoint a competent contractor. Unlike general electricians, event power specialists understand the unique demands of temporary setups, including:
- Designing safe systems that balance loads and avoid overloading.
- Choosing the right generator or confirming that house power is suitable.
- Implementing safe cabling and distribution (including cable ramps and protection).
- Ensuring all work is tested and signed off in line with BS 7909.
When choosing a contractor, look for:
- Qualifications (such as IET, NICEIC, or City & Guilds).
- Experience with events of similar scale and type.
- Evidence of testing and certification of previous temporary systems.
- Membership of professional safety or electrical bodies.
House Power vs. Generators: What Organisers Need to Know
Event organisers may use house power (venue supply) or temporary generators. Both options are viable but come with different considerations.
Using House Power
- Must be assessed by a competent person to ensure it can handle the extra demand.
- Venue approval and written confirmation of capacity are essential.
- Overloading circuits without checks can cause dangerous failures.
Using Generators
- Must be correctly rated to supply the event’s full load (with contingency).
- Require correct earthing and safe siting away from public areas.
- Must be maintained throughout the event and protected from weather.
- Fuel must be stored safely in line with fire and environmental regulations.
The decision should be made during the event planning phase, with a detailed power schedule mapping all loads and contingencies.
BS 7909: The Standard for Temporary Electrical Systems
The recognised standard for temporary electrical systems in the UK is BS 7909: Code of Practice for Temporary Electrical Systems for Entertainment and Related Purposes.
It provides guidance on:
- Design: Ensuring systems are safe, reliable, and meet demand.
- Installation: Using safe cabling, connectors, and distribution boards.
- Testing: Electrical inspection and verification before systems are energised.
- Certification: Providing written sign-off by a competent person.
Importantly, BS 7909 requires a sign-off certificate that confirms the temporary system has been tested and deemed safe. This protects both organisers and contractors by providing documented proof of compliance.
Additional Standards and Guidance
In addition to BS 7909 and EAWR, event organisers should be aware of:
- BS 7671 (IET Wiring Regulations) – Guidance for electrical installations, often referenced for temporary setups.
- Purple Guide – Practical advice for managing electrical risks at events.
- HSG 141: Electrical Safety on Construction Sites – Relevant where setups involve heavy plant or temporary structures.
- Fuel and Fire Safety Guidance – Essential for events using generators or temporary fuel storage.
- Local Authority Requirements – Many councils and Safety Advisory Groups (SAGs) will require evidence of compliance and BS 7909 certification before approving an event.
Why Safe Power Distribution Protects Your Event
The benefits of following best practice go beyond compliance:
- Safety: Reduces the risk of fire, electric shock, or fatal accidents.
- Reliability: Prevents power outages that could ruin performances or disrupt catering.
- Reputation: Demonstrates professionalism to clients, venues, and authorities.
- Legal Protection: Provides documentation that systems meet UK safety standards.
Cutting corners with event power is never worth the risk. The consequences of failure can include injury, prosecution, and lasting reputational damage.
FAQs on Event Power Distribution in the UK
1. Do all events need BS 7909 certification?
Yes, if you are using temporary electrical systems for entertainment or events, BS 7909 provides the recognised standard for safety and compliance.
2. Can any electrician install event power?
No. Only competent contractors with experience in temporary event systems should be appointed. Standard domestic or commercial electricians may not be familiar with BS 7909 requirements.
3. What happens if I overload house power?
Overloading circuits can cause blackouts, equipment damage, or fires. Always have the venue’s power supply assessed before connecting event equipment.
4. Who is responsible for electrical safety at an event?
The organiser has ultimate responsibility, but contractors are legally accountable for their work under the Electricity at Work Regulations.
5. Is generator power safe for public events?
Yes, provided the generator is correctly rated, maintained, and installed with suitable safety measures including earthing, barriers, and fuel safety.
Final Thoughts
Safe event power distribution in the UK is more than a technical requirement — it’s a cornerstone of event safety. Organisers must ensure competent contractors are appointed, systems are tested in line with BS 7909, and all installations meet legal requirements.
By investing in proper planning, design, and certification, you not only comply with the law but also guarantee a reliable and safe experience for your audience. Power might be invisible, but its importance to your event’s success could not be clearer.
