WA’s 15 Gigawatt investment in Solar: pioneering a new frontier.


The 15 GW Asian Renewable Energy Hub has been recommended for approval by environmental authorities in the Pilbara region. The project was originally intended to export clean energy to Jakarta and Singapore via subsea, high voltage DC cables but its focus has shifted to domestic industrial consumers.

The Asian Renewable Energy Hub (Areh) – which could feature up to 15 GW of solar and wind generation capacity – would supply the Pilbara region and develop a green hydrogen manufacturing hub for domestic use and export to Asia.


On Monday, the Western Australia EPA recommended environmental approval for the project, subject to conditions including managing and monitoring impacts on migratory birds and consultation with stakeholders including landowners. “The EPA has completed its assessment of NW Interconnected Power Pty Ltd’s proposal to construct and operate a large scale renewable energy project with an expected operational lifespan of 50 years,” EPA chair Tom Hatton said, referring to the Adelaide-based consortium behind the plan.

The largest renewables project the state’s environmental watchdog has ever assessed, Areh would feature a 2 GW solar farm and up to 1,743 wind turbines, according to the latest numbers released on Monday. The solar panels and turbines would be replaced halfway through the project’s life and the planned facility would also feature 14km of transmission lines to the coast and four high voltage, direct current (HVDC) subsea cables.

NW Interconnected Power comprises Australian renewables developer CWP Energy Asia, Massachusetts-based peer Intercontinental Energy, Danish wind turbine giant Vestas and Australian investment banking giant Macquarie. With Vestas lined up to supply the wind turbines, the search for a solar partner goes on for the Areh scheme.

Environmental Concerns

The proposed project would cover a vast on and offshore development envelope of 662,400ha some 220km east of Port Hedland. One of the issues the EPA considered was the need to permanently clear 11,962ha of vegetation – 1.81% of the development envelope. The authority also assessed the potential impact of the construction and operation of the four subsea cables on benthic communities and habitat and marine environmental quality and fauna.

“Fire management was also considered a key issue, with a staged fire management strategy proposed to monitor the potential impacts and benefits of a landscape-scale prescribed-burns program,” said EPA chair Hatton.

Dr Tom Hatton

With the proposed wind turbines 26km from Eighty Mile Beach and 13km from Mandora Marsh, the EPA believed any impact on migratory birds would be manageable given the distance from habitats designated ecologically important ‘Ramsar wetlands’ – in reference to the Iranian city where the relevant environmental treaty was signed. The Western Australia environmental watchdog recommended detailed measures to mitigate related risks to regional flora and fauna.


The project site is home to numerous species including the threatened black-footed rock-wallaby and the bilby marsupial as well as bats, reptiles, scorpions and land snails. The EPA said it considered every species in making recommendations. A detailed plan was also drawn up related to the waters under which the subsea cables would pass, which host turtles, whales, dolphins and sawfish. The plan relates to use of a hydro-plough or similar ‘low impact’ installation technique.

Looking out for the little guy: EPA is looking into Pilbara’s environmental concerns.

The EPA verdict will be open to public appeal until May 18 with respondents able to register opposition at appealsconvenor.wa.gov.au. The final decision for approval of a project whose developers want to reach financial close next year rests with Stephen Dawson, environment minister for Western Australia. If approved, construction would be due to start by 2024-25.

End of original article by MARIJA MAISCH

How do you accurately assess solar performance?

Solar power is notoriously difficult to manage. Balancing inputs from tens of thousands of rooftop solar power systems while factoring in variations in weather is a tough ask. Detecting anomalies early, or better yet in real time is critical, and the sooner key staff are made aware that a power event is underway, the more effectively it can be dealt with.

Early detection is only one part of the problem. If anomalies cannot be located both geographically and on the wiring diagram, the response can be hindered considerably.

The ideal is to achieve full grid visibility in real time, with a system capable of monitoring thousands of electrical parameters simultaneously. It is a big data challenge that is key to delivering the truly smart grid.

Why preventing rolling blackouts is a major consideration

A recent AMEO report highlighted the risks that large scale solar dependence brings to electrical grid management. The study warned that the significant drop in demand for electricity due to COVID-19 lockdown threatens grid stability and could result in full enterprise collapse by 2022 if measures aren’t taken now to mitigate solar power over-supply.

New levels of visibility will reduce grid management complexity

Getting the full picture – the next frontier in power grid management.

Stability of the electrical grid is today more challenging and essential than it’s ever been. Grid operators and utilities are facing steep challenges to presented by a completely transformed electrical power landscape.

Coronavirus has, within a two month span, shifted the way people and business operate. It’s a scenario no one could have anticipated, and one that opens up major questions about how well operators are equipped to manage tomorrow.

What can be monitored can be measured. Near real-time, grid-wide metering gives teams the data they require to make informed decisions, both in the short and longer terms.

Expanded from an article by MARIJA MAISCH for PV Magazine

Table of Contents

Related Posts

VECTO System integrated into the Eskom Hex BESS Project to manage the large battery system controler.

Hex BESS uses the VECTO System

Introduction: The Dawn of a New Era in Battery Energy Storage System Management The world of power systems engineering is experiencing a revolutionary change with

VECTO Grid OS - Graphing toolkit

VECTO Grid OS Updates March 2023

The newest software upgrades for the VECTO Grid OS – our comprehensive platform for advanced grid monitoring and control – are now available. Our most