UK Specialists in Power Quality & ENA ER G5/5 Compliance

Trusted Experts in Power Quality.

We are your trusted, independent specialists in power quality and ENA Engineering Recommendation G5/5 compliance across the UK. From harmonic surveys to full DNO-ready reports, we support installers, consultants, and developers working with low carbon technologies such as solar PV, battery storage, and heat pumps.

Established for over 23 years, we provide expert, impartial advice to ensure power quality, compliance and project success.

Our Services

Power Monitoring Surveys

Power Quality Surveys

Identify and resolve voltage disturbances, harmonic and other power quality related issues before they affect your operations. Our power quality surveys provide detailed insights into your electrical networks performance and reliability.

G5/5 harmonic assessments

G5/5 Assessments

Ensure compliance with the latest ENA ER G5/5 harmonic limits. We provide thorough modelling and reporting to help your installations meet grid connection requirements and avoid costly delays.

Harmonic Filters

Harmonic Filters

Reduce harmonic distortion and improve system efficiency with our market leading harmonic filter solutions. Our engineered systems protect sensitive equipment and maintain power quality across all applications.

Why Work with Us?

We lead the UK market in all matters concerning G5/5 harmonic surveys, load assessments, active/passive filters, and power efficiency audits.

Contact us to discuss your requirements.

  • Experts in low carbon technology integration
  • Nationwide coverage across the UK
  • Clear, DNO-ready documentation
  • Friendly, professional and expert service tailored to your project
Team at work

Our Accreditations

Safe Contractor Logo Construction Line