GOVNA Voltage Optimiser

What is a Voltage Optimiser?

The GOVNA (General Over Voltage Negating Appliance) regulates your electricity by providing a voltage which is closer to the design parameters of your appliances.

The GOVNA has been designed specifically for the UK market and with todays renewable technologies in mind.

Many of the appliances on the market today are rated at 220 to 230V. However many solar inverters produce voltages higher than 250V! This causes appliances to fail prematurely and consume more energy during their lifetime.

By reducing the electrical demand we are increasing the return on investment on Heat Pumps, Solar PV, Biomass and LED lighting.

Benefits of GOVNA

  • Save up to 15% on your electricity.
    From the moment your GOVNA is installed you will save between 6% and 15% on your power use.
  • Protect your electrical appliances.
    All of your electrical appliances will benefit from lasting longer due to decreased power consumption.
  • Easy to Install.
    GOVNA can be installed in less than 1 hour and will provide savings throughout it's lifetime.
  • Low cost investment.
    GOVNA typically pays for itself within 5 years and is designed with a 25+ year life expectancy.

Call Greentec Now!

The best time to go for renewable energy is right now. The early adopters have gotten better tariff rates which are index linked and can last for 20 years. To find out how much you could save/earn from renewable energy, simply give us a call.


1. Call Us

Call Greentec on 0333 456 5000 to arrange a FREE consultation with one of our renewable energy experts. We come to you, at a time that suits you.


2. Your Consultation

Our experts will listen to your requirements, survey your property and make recommendations to get you the best solution for your circumstances.


3. Your Solution

If our recommendation ticks all the right boxes, then we're in business. We help you at each stage of the process to ensure you get the right system quickly and at the best price.