FAQs

Electricity infrastructure, like generation, storage, or network assets, doesn’t manage itself. Someone needs to:

• Control how it operates
• Run it safely day to day
• Maintain it so it stays reliable over time

A Control, Operation and Maintenance Agreement (COMA) is a contract that explains who is responsible for running an electricity asset and keeping it in good working order. Under a COMA:

• One party takes responsibility for control, operation, and maintenance
• Responsibilities are clearly defined, so nothing falls through the cracks
• Performance, safety, and reliability standards are agreed in advance

In brief: A COMA is the agreement that keeps electricity assets working safely, efficiently, and reliably.

Maintech Power offers a complete and expert COMA service.

Our COMAs are designed to ensure your compliance with the Electricity at Work Regulations and best industry practice. They operated and managed by our expert in-house Senior Authorised Engineers.

Read more about our COMA services.

A Senior Authorised Person (SAP) is the responsible engineer who ensures electrical work is done safely. Whenever work is carried out on High Voltage or live electrical systems, someone must make sure that:

• The correct safety rules are followed
• Isolation procedures are done properly before work begins
• Work is supervised and risks are minimised
• The SAP has the authority to give or withhold permission for work, making sure people and equipment are safe.

In brief: A SAP is the “safety gatekeeper” for electrical work – the person who signs off that it’s safe to proceed. This role is essential in protecting workers, assets, and the electricity network.

Maintech Power offers expert SAP duties, provided by our in-house team of engineers.

Read more about our SAP services.

Intrusive maintenance involves physically opening, isolating, or dismantling electrical equipment to inspect, repair, or replace components. This type of work often requires outages.

Non-Intrusive maintenance assesses asset condition without opening or isolating equipment. Techniques like visual inspections, thermal imaging, sensors, and condition monitoring help identify issues while the network remains in service.

In brief: Intrusive maintenance addresses issues directly. Non-Intrusive maintenance helps detect them early. Both play a critical role in keeping electrical networks safe, reliable, and resilient.

Maintech Power offers a combination of intrusive and non-intrusive maintenance carried out to provide security of supply, UK wide.

Read more about our Intrusive and Non-Intrusive Maintenance services.

Security of supply is about making sure electricity is available when it’s needed – today, tomorrow, and in the future. It means having:

• Enough generation and network capacity
• Reliable infrastructure
• Plans in place for faults, extreme weather, or sudden demand spikes

In brief: Security of supply is the ability to keep the lights on, even when something goes wrong. It’s a key part of a resilient electricity system that supports homes, businesses, and critical services.

Maintech Power’s range of High Voltage Installation and Maintenance services ensure security of supply for your electrical network and infrastructure, always.

Read more about our services.

The Electricity at Work Regulations are UK safety rules designed to protect people from electrical danger at work. It’s essential that your business complies with them. They require electrical systems to be:

• Designed and maintained so they’re safe
• Worked on only by competent people
• Properly controlled, especially when equipment is live

In brief: These regulations exist to prevent electric shock, burns, fires, and serious accidents at work. They apply across all industries, not just the energy sector, and are a cornerstone of electrical safety in the UK workplace.

Maintech Power has a range of High Voltage Installation and Maintenance services that ensure you comply the Electricity at Work Regulations (UK).

Read more about our services.

An Authorising Engineer (AE) is the person responsible for ensuring electrical systems are safe to operate and maintain. They:

• Assess risks and set safe working procedures
• Approve who can work on electrical equipment
• Ensure compliance with safety regulations and company policies

In brief: The AE is the expert who signs off that electrical work can be done safely, protecting people, equipment, and the network.

Maintech Power offers AE duties, provided by our in-house team of experts.

Read more about our AE services.

G99 is a UK standard that sets the rules for connecting new generation, like solar panels or wind turbines, to the electricity network safely and reliably. It ensures that:

• New generators don’t cause faults or instability
• They work smoothly with the existing network
• Safety and performance standards are met from day one

In brief: G99 compliance is about making sure new electricity sources connect safely and keep the grid stable for everyone.

Maintech Power offers consultancy services, including services to help ensure G99 compliance for your project.

Read more about our consultancy services.

Testing and commissioning is the process of checking that electrical equipment and infrastructure work safely and correctly before they go live. It involves:

• Inspecting and testing equipment
• Verifying that protection, control, and safety systems work
• Ensuring the system operates reliably under real conditions

In brief: Testing and commissioning is the final “proof” that everything is safe, reliable, and ready to deliver electricity to homes and businesses.

Maintech Power offers the expert testing and commissioning of electrical distribution equipment and infrastructure, from 415V up to 132kV.

Read more about our testing and commissioning services.