Our clients vary greatly and include companies from the following areas:

  • Universities,
  • Aged Care facilities
  • Food & Pharmaceutical Manufacturers,
  • Textiles Trade
  • Schools
  • Wineries
  • Equipment Manufacturers
  • Shire Councils
  • Commercial Properties
  • Households & apartment owners
  • Apartment/Retail Body Corporates

Below are statements – that some clients have made in regard to our services & deliverables:

Business Testimonials

“We embarked on a journey to reduce our large energy consumption across more than 30 sites nationally. We enlisted the help of Karl to investigate what possible energy savings we could make. Karl came to our pilot site to run through options with us first, clearly explaining different approaches for measuring our power consumption and showing us how an audit would be conducted. Karl is very realistic and pragmatic with his recommendations, he tailored the solutions to our needs which really focus on short payback opportunities. For our pilot facility, in total he recommended 10 projects which would cut our usage by $62k pa with ROI under 1 year and save 461 tonnes of CO2. Karl is very experienced and knowledgeable and I have really enjoyed the opportunity of working with him.”

Alan Kearns CEng MIET – Business Improvement Manager – Recall ANZ


“Karl Olsen from Green Wire Consulting conducted an energy audit at our manufacturing facility, seeking input from our maintenance team, production staff and external contractors who have specific knowledge of our energy systems, to ensure he delivered the most appropriate recommendations. I found Karl to be courteous, professional and a pleasure to work with. His final presentation to the company and audit report was of a particularly high standard. I have no hesitation in recommending Karl.”

Tony Barnes – Environment Health Safety Manager – Saizeriya Australia – (refer to case study on this website)


“When we were slapped with a huge bill from AGL for our power usage, we knew we needed to do something. Not just negotiating better rates with prospective energy suppliers but also assess the way we consume power. While we were fairly aware of the areas we suspected we were inefficient, Karl’s expertise and professionalism put a rubber stamp of assurance for us.”

“We are happy with the way he listened, understood and clarified our concerns and wouldn’t hesitate to recommend him to anyone. We are on course, through his recommendations and referrals, to save a potential 50% in our Power bills.”

Vildon Foo – Financial Controller Endeavour Life Care


“We (a multi-level residential apartment and amenities complex on St Kilda Road, Melbourne) have called on Karl’s services on two occasions in recent times. The first brief was to measure the likely user distribution of a common electricity supply, and costs, if converted to separate metering. His findings supported feasibility and were confirmed at implementation.”

” More recently, Karl has conducted an audit of our entire premises and proposed measures to reduce usage and other electricity-related costs. This report was only recently finalised and measures arising have not yet been implemented (aa 30/7/2016). We have found Karl to be knowledgeable and professional in all dealings”

Ron Hine – Owners Corporation Member

Household Testimonials

“Greenwire completed a residential energy audit on our inner city apartment, accounting for all of our energy use. The audit allowed us to identify some changes that will significantly reduce our energy wastage, pollution impact and utility bills. Karl demonstrated expertise, professionalism and pragmatism in providing some realistic solutions to reducing our power usage. I recommend the Greenwire energy audit to help individuals and companies to be more responsible and efficient citizens.”

Jonathan Steffanoni – Home Owner (Melbourne CBD)

“Karl Olsen conducted an energy audit at my home where I felt the energy bill was excessive. I was very impressed by Karl’s attention to detail. He examined all areas of energy output. He was on time, communicated well and presented his recommendations in a very professional manner. I have no reservations about recommending Karl and Greenwire.”

Jill Pontin – Home Owner (Melbourne outer suburbs/semi rural)

“A neighbour recommended Greenwire as an energy auditor who would be able to find the source of my energy consumption to help explain the high bills. Karl came round with all necessary equipment, hooked them up to my power outlets and switchboard, and we were able to account for my usage during the consultation. I was also able to learn and monitor my usage pattern in real time via the Greenwire website. He was very helpful and professional from the moment we spoke on the phone and gave tips and advice on how to be more energy efficient. I have recommended Karl to others and have no hesitation calling on him again in the future.”

Luan – Home Owner (Melbourne)

“We were concerned about our high power bills after building a “green” design house. After getting Karl to do a power audit and following his advice we were able to reduce our bills substantially and have a better understanding of our usage. A highly recommended exercise.”

Glen & Barbara Nichols – Home Owners (Kinglake West)

“I found Greenwire after searching the Internet to find a specialist who could identify the reasons my Electricity Bill had risen from a particular date. Greenwire put in place monitoring that identified the appliance that was on (when it should have been off) and that had been burning Dollars at a rapid rate. The monitoring systems were unobtrusive and delivered excellent reports providing opportunities to reduce power usage in other areas of the house. Greenwire also provided recommendations for appliance choice, particularly lighting.

I found Karl Olsen, the Greenwire Director, to be easy to get along with and well attuned to the issues in my situation.If I had not used Greenwire my bills would still be unnecessarily high.”

David Stogdale – Home Owner (Malvern East)

“I recently had and Electricity Audit done in my home by Karl from Green Wire. He spent a couple of hours going through my home thoroughly (including crawling around in the roof) checking every nook and cranny to see why my power bills were so high. Karl was full of information and gave me some ideas on how to significantly reduce my power bill. He checked every appliance to see how much power each was using, and, by process of elimination, was able to calculate exactly where the most power was being used.”

“Can’t wait for my next power bill!”

Angie Snell – Home Owner (Patterson Lakes)

“Thank you so much Karl, your audit was so informative and easy to go through and I can’t believe how many tips you could give us to save money! Lovely to meet you and will be recommending you to all our friends!”

Aisling O’Connor Snell – Home Owner (Melbourne) – 5 Star Review provided on Green Wire Consulting Facebook page

“We are so pleased with your work Karl i wish we could give you 10 stars. Hardworking, professional, polite and above all very ethical. Kept in touch with us after the job was done and was happy to provide further assistance. We were very impressed with our bill after the tips you gave us. I highly recommend anyone seeking energy audits or Electrical work to Karl. I couldn’t recommend him any higher.

Edward Chol – Home Owner (Melbourne metro) – 5 Star Review provided on Green Wire Consulting Facebook page

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