Renewable Energy The IIG Solar Income Fund asset

The Epuron Portfolio

A portfolio of loans for solar installations in remote Northern Territory.

Published: December 5, 2017

About the Portfolio

The Epuron set of ten off-grid utility solar facilities were installed in the Northern Territory and commissioned in 2015. One helps power the iconic Ayers Rock Resort, near Uluru. Another helps power Alice Springs.

The IIG Solar Income Fund held a portfolio of loans secured against these assets. It exited the investment in 2019. They were developed by a Sydney-based renewable energy infrastructure company called Epuron, which is now owned by Fulcrum Solar Pty Ltd.

The Uterne Solar Panels Under Inspection

The Kalkarindji installation helps provide power to a community about 550km due south of Darwin. Their main alternative for electricity are the generators which run off diesel delivered by road.

The other Epuron sites are TiTree, about 190km north of Alice Springs, and Lake Nash, 500km north east of Alice Springs, near the Queensland border.

Asset Type

Loans secured against Renewable Energy Infrastructure

Loan Acquisition Value


Asset Generation Capacity



The Epuron assets reduce the reliance of remote Northern Territory communities on expensive and polluting diesel generators.

As the Epuron company writes;

“TKLN Solar has a combined capacity of 1MW and has been contributing emission-free power to remote communities in the Northern Territory since January 1, 2013. The three solar power stations are capable of providing high instantaneous solar penetration (up to 80% of power demand at any instant) and up to 30% of the average daily electricity consumed at each community.

“Each of the TKLN Solar power stations has a sophisticated battery backup Grid Stability System (GSS) which maximises solar energy input to the existing diesel grid without affecting the diesel generators or the continuous supply of power to the community. The large size of these systems and their high renewable energy contribution distinguishes them from other remote hybrid systems in Australia.

“Epuron has integrated and is now using a CloudCAM cloud detection and short term solar forecasting system to help optimise the overall system management by predicting fluctuations in instantaneous solar power output. This allows better management of the energy storage system, increasing its lifetime as well as allowing improved performance.

” Epuron designed, developed, financed, constructed and operates the project which was built with the assistance of grant funding from the Federal Government. TKLN Solar sells all of its output to the NT’s Power and Water Corporation.

“In July 2013 TKLN Solar won two prestigious awards from the Northern Division of Engineers Australia – the Engineering Excellence Award for Research, Development and Innovation and the Australian Solar Council Award for Sustainability.