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Off Grid Case Studies

VUNABAKA RESORT DEVELOPMENT

Vunabaka resort is currently our ultimate off grid installation and a flagship install for PowerSmart. It won 'Best' Solar PV Implementation with Battery Storage at the SEANZ awards in 2016 and is featured on Tesla's Powerpack website. This project is typical of many of the projects that we work on, in that years worth of work have gone into it before anything seems to  happen. The Vunabaka project uses cutting edge Tesla batteries and PowerSmarts own custom coded monitoring system to control the relationship between solar PV panels, batteries, generators and power demand. 

In 2012 we were approached by some developers who wanted to build a beautiful resort in Fiji, but like many Pacific islands there was the major issue of electricity. Their solution at that stage was to do multiple off grid homes and lodgings all with their own solar power system and battery back up. While great in theory, we quickly realised that there were major inefficiencies in doing it this way and so came up with a suggestion modelled off what we had done in Tokelau but with a twist.

PowerSmart solution was to create a minigrid using multiple solar arrays all feeding into a single centralised battey bank that powered a reticulated grid that all the buildings were connected to. There a number of advantages to doing this:

  1. With multiple arrays orientated in different directions a more constant supply of electricity is possible throughout the day
  2. A centralised battery bank helps to eliminate inefficiencies compared to having individual batteries on each home
  3. Because all the electricity generated by the solar PV is fed into a centralised pool of electricity, individual houses on the development can be charged for electricity. This gives the developer or manager of the resort another income stream.

In October 2016 Stage One was completed with over 300kW of solar PV panels and 2 Megawatt hours of Tesla industrial battery storage (Tesla powerpack). This is all backed by PowerSmarts own proprietary monitoring and control programme which ensures a constant supply of electricity to the grid. 

This project also won 'Best Solar PV Off Grid Implementation' at the annual SEANZ (Solar Electricity Association of New Zealand) Awards in November 2016

Vunabaka - Six Senses Hotel - 4MWh

Label Title: Vunabaka - Six Senses Hotel - 4MWh

Location: Malolo, Fiji

Specs: 1 MW Solar PV, 4MWh Tesla Battery Storage

All Projects

Vunabaka - Six Senses Hotel - 4MWh
Vunabaka - Six Senses Hotel - 4MWh

VUNABAKA RESORT DEVELOPMENT Vunabaka resort is currently our ultimate off grid installation and a flagship install for PowerSmart. It won...

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Whakamarama 5.2kW
Whakamarama 5.2kW

With off grid solar, you can live off the grid and build your dream house, where you want! NO Compromise! Matthew was clearing...

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Tokelau - 1 MW
Tokelau - 1 MW

On October 29th 2012 PowerSmart completed the award-winning ‘Tokelau Renewable Energy Project’, officially making Tokelau 100%...

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Tuvalu & Northern Cook Islands - 1.9MW
Tuvalu & Northern Cook Islands - 1.9MW

In October 2014 PowerSmart was awarded a 35 million dollar renewable energy project by the New Zealand Aid Programme in partnership with governments...

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Craters of the Moon - 10kW
Craters of the Moon - 10kW

The Craters of the Moon Trust, 9km north of Taupo needed to extend their building to provide a better experience for their visitors. The new building...

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East Cape Maori - 15kW
East Cape Maori - 15kW

Eighteen kilometers from Ruatoria and twelve kilometres away from the nearest powerlines on Whareponga Road is a six home development, that is being...

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