About us


Know More About Us

NES celebrates 18 years in Business. NES was formed on July 1, 1995. The formation was a direct result of the local power company restructuring. We started with a modest staff of 8 and just 1 branch and we have now grown to over 20 staff, 2 branches (Gore and Invercargill) and 2 companies (NES Ltd and NES Central Ltd – Luggate).

Over the years we have built up an impressive reputation around Southland, Otago and Central for providing quality workmanship mixed together with a wealth of knowledge about all things electrical.

In 2006 we successfully tendered for the contract maintaining the Invercargill City Councils water and drainage pump Infrastructure which expanded our current business to include mechanical fitting services.

We began working in Central Otago in 2000 and due to growing business in the area we opened a new Company NES Central in 2007.In 2012 NES branched out into the Gore area. We currently have an electrician and apprentice working in the area.

NES continues to grow and expand; we are currently working on subdivisions in Central, Dunedin and Palmerston North.We offer expertise and experience. We proud to have on our team Electricians, Electrical Inspectors, Line Mechanics, and Apprentices. We can provide our clients with full design, build and maintenance services.

We offer expertise and experience. We proud to have on our team Electricians, Electrical Inspectors, Line Mechanics, and Apprentices. We can provide our clients with full design, build and maintenance services.

BUPA Cambridge

We are currently on site in Cambridge North Island working on another Bupa Retirement Village that will have at least 86 residential units and a large care hospital.


E Hayes Hammer Hardware

Pictured (above) on the roof of the E Hayes Hardware building adjacent are NES staff, Peter and Nic installing solar panels for power generation in E Hayes store.

Located above the central hardware counter instore is a large flat screen monitor with an animated display and real time power generation data for shoppers to view. You can also view stats online at http://www.splashmonitoring.com/system/ehayesandson

Call us NOW to see if solar is viable for you!
Did you know that Kiwibank have sustainable energy loan incentives? Visit

NES can provide the full installation service, Electrical Inspection and take the hassle out of the Application process to your energy trader and the local supply Authority Network.

Get started now by phoning 0800 1 888 97

Cadrona Village, Central Otago

NES Central recently completed the undergrounding of the electrical network throughout Cardrona Village. NES Central were chosen by the Queenstown Lakes District Council and Aurora Energy Ltd over other contractors for the laying of cables, installing switchgear and ground mounted transformers. All poles were removed once the underground system was livened.


NOTE : Powersaving Hints
When it’s time to replace your old appliances choosing more efficient models is a good way to save on your appliance electricity bill. Most new appliances have energy star ratings on them that allow consumers to see their annual power consumption and compare other brand’s performance.

Our Mission

  • Be a leader in the electrical industry!
  • Provide the best service to our clients!
  • Comply to Health & Safety and Environment requirements.
  • Avoid or minimise any adverse impacts on our environment.
  • Maintain achievements and search for improvements.

Qualifications and Certifications:

  • Telarc SAI: Q-Safe Code: 2017
  • ECANZ: Master Electricians
  • SiteWise: Green 2019/2020
  • +IMPAC Prequal

NES Ltd owns many insurance policies including $5 million Public Liability insurance, further details upon request.


Our People are Our Best Resources


Gavin Harris


Born and bred in Southland, Gavin’s electrical career began 29 years ago with the local Municipal Electricity department here in Invercargill. He then furthered his electrical qualifications to become an Electrical Inspector and today his experience encompasses power line building, 11Kv/400 Volt cabling, alternative electrical generation and all facets of Industrial, commercial and domestic electrical.

Gavin became CEO of NES in 1995 and strives to make NES a company any South lander can be proud of and outside of his busy work schedule he also is a member of a Toastmasters Club and the Institute of Directors, NZ. Gavin is married to Angela, has 2 daughters and is a proud grandfather. He loves keeping fit and outdoor activities including hunting and fishing.

Although he is the CEO he loves talking with clients and helping them find solutions to any challenges they have – you can contact him by phoning the NES office on 080 0188 897


Stephen Bottlik

Electrical Foreman

Steve was born in Dunedin and moved to Invercargill a year later and has been living here since. He had an interest in electronics in his teenage years which led to an interest in all things electrical. He started an apprenticeship with the Invercargill City Council Water Department which eventually incorporated the Drainage and Sewage Departments along with the care of the ICC flats. Steve has been an employee of NES for seven years.

Steve has a very wide and varied range of experience in the Industrial field of maintenance. Steve is married to Tania and has three children. He has interests in Italian automobiles and also in Breeding/Conformance showing of the Papillon breed of dog. NES maintains the runway lighting at the Invercargill Airport.


Ross Gibbs

NES Director

Ross was born locally in Tuatapere and eventually moved to Invercargill. His electrical career started as a ‘toddler’ helping his father, eventually completing an apprenticeship in the family business.
He joined the Power Company Invercargill in 1994 and became a qualified Line mechanic, already being an Electrical Inspector.

Ross is proud to be a part of NES as one of its 3 directors, a company recognised for its expertise, competitiveness and integrity.
Ross is married to Carol, has two sons, Keanu (12yrs) and their new son Gabriel (5mths).

Many fellow vintage car enthusiasts have been surprised by Ross’s new project.

Call him anytime on 021 314 956 to discuss your Power and Engineering requirements.