Tag Archives: PV

juwi South Africa to build solar PV plant at Pan African’s Evander Mines

Pan African says it has entered into an engineering, procurement and construction (EPCM) agreement with juwi South Africa to construct its 9.975 MW solar photovoltaic plant at Evander Mines in the country.

Construction will commence in the March quarter of 2021, with first power expected in the September quarter of 2021, it said.

Part of the international juwi Group, juwi South Africa is one of the world’s leading renewable energy companies. To date, juwi South Africa has built six utility scale solar plants totalling 207 MW under the South African Government’s Renewable Energy Independent Power Producers Programme, Pan African said.

The Evander Mines solar photovoltaic plant will utilise bi-facial module technology to maximise its yield and it will be constructed on previously disturbed land owned by Evander Mines, Pan African said. The plant will provide an estimated 30% of Elikhulu’s power requirement during daylight hours and is expected to materially reduce electricity costs at this operation. Furthermore, the Evander solar photovoltaic plant is expected to enhance the reliability of the power supply during daylight hours and result in an expected CO2 saving of more than 26,000 tonnes in its first year of its operation.

Elikhulu has capacity to process an estimated 1 Mt/mth of tailings with a projected output of approximately 55,000 oz/mth of gold.

The total cost of the Evander solar photovoltaic plant is ZAR140 million ($9.4 million), with a calculated payback on this investment of less than five years, Pan African said.

“This solar photovoltaic plant further reduces Elikhulu’s environmental impact and is just one of a number of initiatives in the group’s commitment to producing high-margin ounces in a safe and efficient manner, while investing in local communities and minimising the environmental impact of operations,” it added.

Pan African is also assessing the merits of expanding the Evander Mines solar photovoltaic plant in due course to provide for a clean energy feed to its Egoli project, and of a similar solar photovoltaic plant at the group’s Barberton Mines operations.

Pan African CEO, Cobus Loots, said: “The Evander Mines solar photovoltaic plant is integral to the group’s purpose of ‘Mining for a Future’ and pursuing ESG initiatives that go beyond compliance. This plant will be one of the first of its kind in the South African mining space. We look forward to commissioning the operation during 2021, on budget and on schedule.”

Aggreko to deliver renewable power microgrid to Gold Fields’ Granny Smith mine

Gold Fields’ Granny Smith gold mine is set to install one of the world’s largest renewable energy microgrids powered by more than 20,000 solar panels and backed up by a 2 MW/1 MWh battery system, according to mobile and modular power company Aggreko.

The mining company has contracted the Scotland-based firm to design, build and operate the 8 MW solar power generation system along with the battery system at Granny Smith, which is located east of Laverton in Western Australia’s Goldfields region.

In June, said it was working with Gold Fields on plans to provide 7.3 MW of solar power generation, as well as a 2 MW/1 MWh battery system, to be integrated with the existing gas supply as a hybrid power station.

Gold Fields Executive Vice President Australasia, Stuart Mathews, said: “We are thrilled to reach an agreement with Aggreko for the design, installation and operation of this innovative source of renewable energy which will generate nearly enough power to run the mine’s processing operations.

“We expect the renewable power microgrid will be up and running at Granny Smith by Q4 (December quarter) 2019 and it will be a welcome addition to our suite of on-site energy solutions across other operations which will enable us to reduce our carbon footprint,” he said.

Construction of the renewable energy system is planned to commence in May and, when completed, will be one of the world’s largest hybrid off-grid microgrids, integrated with Aggreko’s existing 24.2 MW natural gas generation.

Aggreko AusPac Managing Director, George Whyte, said the solar, thermal and battery storage assets will be seamlessly integrated and managed by Aggreko’s control software platform – maintaining full system availability and optimising the lifetime of existing thermal assets.

Whyte said: “The solar-plus-battery system is projected to reduce fuel consumption by 10-13% – the equivalent of removing 2,000 cars from the road – and produce about 18 GWh of clean energy per year.

“Gold Fields understands the performance, cost and environmental advantages for their operation, as well as the need to integrate this resource into their system without compromising power supply reliability or mining productivity.”

While the solar photovoltaic (PV) will reduce the need to run thermal generators, the battery plant will provide essential services such as spinning reserve displacement, PV ramp rate control and transient voltage/frequency support.

The current Granny Smith power station was designed and installed by Aggreko in 2016 and the new hybrid power system, combined with a thermal station expansion, will meet the increased daily power needs of 24.2 MW, with 12.2 MW allocated to the Wallaby underground mine and the remaining 12 MW to the processing plant, associated facilities and mining camp, Aggreko said. Granny Smith produced 290,000 oz of gold in 2017.

Zenith Energy helps Independence go solar at Nova nickel-copper operation

Independence Group’s Nova nickel operation is set to play host to Australia’s first fully-integrated commercial hybrid diesel/solar photovoltaic (PV) facility after the company signed a contract amendment with remote power generation specialist Zenith Energy.

The changes to the existing power purchase agreement, signed by Zenith and Independence back in 2015, will incorporate a solar PV facility with a forecast 12.5 GWh/y.

Zenith’s subsidiary, Zenith Pacific, will now build, own and operate a hybrid diesel/solar PV power station of around 26 MW in installed capacity to “reliably and efficiently service the power needs of the Nova operation”, the company said.

Zenith has made huge strides since becoming a public entity via the ASX in May, sealing contracts with the likes of Gascoyne Resources, for its Dalgaranga gold project, and Dacian Gold, for its recently opened Mt Morgans gold mine.

Managing Director of Zenith Energy, Hamish Moffat said: “This development represents the first fully integrated and commercial hybrid diesel/solar PV facility in Australia and is a step forward in future renewable energy solutions.”

The solar PV will include “state-of-the-art PV modules, single axis tracking, inverters, communications and control system technology”, Zenith said.

The hybrid power station will incorporate high efficiency diesel-fuelled generators and solar PV generation.

The integrated facility is expected to be completed within the first quarter of Zenith’s 2020 financial year (to end-June, 2020). The initial supply period is for six years with an option for Zenith to extend for a further two years.

Independence Group’s Managing Director, Peter Bradford said: “The development of this innovative hybrid energy solution will…improve our cost structure with targeted renewable power insertion of up to 50% of demand via the solar PV facility.”

Nova is in the Fraser Range of Western Australia, some 160 km east-northeast of Norseman. It produced 22,258 t of nickel and 9,545 t of copper in its first full year of operation in the 2018 financial year.