Africa|Building|Construction|Copper|Efficiency|Energy|Engineering|Environment|Financial|Flow|Gas|generation|Gold|Mining|OPENCAST|Power|PROJECT|Renewable Energy|Renewable-Energy|Risk Management|Safety|Surface|Underground|Waste|Flow|Solutions|Environmental|Drilling|Waste|Bearing|Operations
Africa|Building|Construction|Copper|Efficiency|Energy|Engineering|Environment|Financial|Flow|Gas|generation|Gold|Mining|OPENCAST|Power|PROJECT|Renewable Energy|Renewable-Energy|Risk Management|Safety|Surface|Underground|Waste|Flow|Solutions|Environmental|Drilling|Waste|Bearing|Operations

Green energy integrated into Harmony Gold operations, uranium surprises on upside

Harmony Gold FD Boipelo Lekubo interviewed by Mining Weekly’s Martin Creamer. Video: Darlene Creamer

29th February 2024

By: Martin Creamer

Creamer Media Editor


Font size: - +

JOHANNESBURG ( – Green electrons are being generated as planned at Harmony Gold’s 30 MW first phase of renewable energy generation, which is now fully integrated into the mining company’s Tshepong South and North operations.

This was made clear by Harmony FD Boipelo Lekubo, who spoke to Mining Weekly in a Zoom interview on Wednesday, following the Johannesburg- and New York-listed company posting a superb set of half-year financials and declaring a record interim dividend. (Also watch attached Creamer Media video.)

“Phase 2 construction we expect to commence in FY25. We have the first phase of that which is 100 MW and which utilises the proceeds from our green loan.

“That will be constructed near Moab Khotsong and the second phase of that will be an additional 37 MW through a power purchase agreement.

“Phase 1 will reduce our Free State peak demand by 20% and group peak day demand by approximately 6%. So, that's about 30 MW out of 500 MW and Phase 1 and 2 together will reduce group peak demand by about 30%. So call that 167 MW out of the 500 MW.

“Repayment on the Phase 2A that we’re building on balance sheet is fairly quick. We’re talking around four years, so we’ll definitely start to see the benefit of self-generation on the bottom line,” Lekubo added.

Harmony’s decarbonisation strategy is guiding operations to net-zero greenhouse-gas emissions by 2045 along a transition pathway that includes energy efficiency, portfolio re-engineering, electricity mix, improvement adaptation and decarbonisation of the transportation sector.

In the six months to December 31, record operating free cash flow rose 265% to R7 112-million driven by operational prowess and 11% higher underground recovered grades to 6.29 g/t from 5.68 g/t.

Full-year production guidance for the group remains unchanged at between 1 380 000 oz to 1 480 000 oz of gold. Full-year cost guidance also remains unchanged at less than R975 000/kg. Underground grade guidance remains unchanged at 5.60 g/t to 5.75 g/t.

Mining Weekly: There are so many highly positive aspects about Harmony’s latest presentation. But what, in your view, should be the biggest overall takeaway from these stunning results?

Lekubo: The overall message of the exceptional set of results is that we’ve achieved what we said we would. If you look at what our strategic pillars are, we’re recording improved safety performance, we’ve increased our underground recovered grades which have lifted margins. We’ve added quality ounces through Moab Khotsong and Mponeng. Consistent with our policy and growth strategy, we’ve declared a record interim dividend. Then from a balance sheet perspective, net debt to Ebitda is at zero and we were at a net cash position at the end of the period.

Some of the percentage increases of free cash flow were sky-high. What, in your view, is the one that deserves the most focus?

The operating free cash flows were largely driven by the higher recovered grades and, certainly, the higher average gold price that we received. The higher grade Moab Khotsong and Mponeng operations contributed around 45% to group operating cash flows and Hidden Valley on the other hand 25% of operating free cash flow. So, our new acquisitions and what we have in Hidden Valley were the main drivers behind that performance.

Is your gold-price hedging policy bearing fruit?

It’s definitely bearing fruit. As per policy, we hedge to lock in margins. We do not speculate with the hedge book. As you all know, commodity prices are cyclical and we believe that, if we're consistent with our methodology, it will deliver the desired outcome. Eighty per cent of our production is unhedged, which offers good upside with increases in commodity prices. In addition, our hedge is done over shorter periods on a rolling basis, so it's working quite effectively as a financial risk management tool and we believe that we’re well protected by the hedge should gold prices reduce in future.

The go-ahead for the extension of the Mponeng gold mine is impressive. But what grabs one’s attention is that this will be self-funded. How much funding will be required and over how long?

We estimate around R7.9-billion rand in project capital over the life of the project. If you look currently at Mponeng, Mponeng generates R1.9-billion rand in operating free cash flow and that was just in this reporting period alone. At an annual estimated capital of a R1-billion, or call it $50-million, this project is affordable, its capital intensity is manageable and Mponeng will be able to fund the extension out of operating cash flow.

What can be expected from Moab and surface gold mining?

The Moab extension, which we refer to as Zaaiplaats, is progressing well, and the next milestone will be the start of the decline sinking, which we expect to commence within this quarter. With regards to our surface operations, we're currently busy with the Mine Waste Solutions extension, which we refer to as Kareerand. There was a rainy season but that did not affect the project schedule too much and good progress is being made on the project due to the late arrival of the rains.

How valuable are the uranium and silver credits?

With uranium, we saw a price increase of just under 45% and a production increase of a little over 37%. Total uranium sales revenue for the half-year was around R435-million and from a Hidden Valley perspective, which is predominantly where the silver credits come in, prices rose 26% and production roughly 17% increase, so revenue of just under R1-billion came in from silver, so they're both very valuable in terms contributing to that revenue line.

When will copper come into play?

We're currently busy with the Eva feasibility study update, and resource drilling and data gathering to inform the study outcomes are consistently under way.  During this calendar year, we’re looking to come back to the market with an update as well as capital expenditure figures. We're proactively managing discussions with the Department of Environment Science around environmental permit amendments and pathways just to progress that further. On the other hand, there's the Wafi-Golpu project in Papua New Guinea. In the run-up to the PNG conference held late last year December, government was very focused on finalising all the various mine project agreements. The negotiation team was fully engaged and with that now being finalised, they announced to restart capacity towards progressing the Wafi-Golpu discussions again, so we're quite confident and continue being engaged with the Minister to get those negotiations going.

Are the community troubles in Papua New Guinea impacting negatively on Hidden Valley in any way?

No, our operations have not been affected by these activities and they are also not expected to have any negative impact on the Wafi-Golpu permitting negotiations.


In South Africa, Harmony has nine underground mines, one opencast mine and several surface operations.

Gold revenue for this reporting period to December 31 increased by 32% to R29 705-million compared with R22 532-million in the first half of its 2023 financial year.

Edited by Creamer Media Reporter



Weir Minerals Africa and Middle East
Weir Minerals Africa and Middle East

Weir Minerals Europe, Middle East and Africa is a global supplier of excellent minerals solutions, including pumps, valves, hydrocyclones,...


We are dedicated to business excellence and innovation.


Latest Multimedia

sponsored by

Magazine image
Magazine round up | 12 July 2024
12th July 2024

Option 1 (equivalent of R125 a month):

Receive a weekly copy of Creamer Media's Engineering News & Mining Weekly magazine
(print copy for those in South Africa and e-magazine for those outside of South Africa)
Receive daily email newsletters
Access to full search results
Access archive of magazine back copies
Access to Projects in Progress
Access to ONE Research Report of your choice in PDF format

Option 2 (equivalent of R375 a month):

All benefits from Option 1
Access to Creamer Media's Research Channel Africa for ALL Research Reports, in PDF format, on various industrial and mining sectors including Electricity; Water; Energy Transition; Hydrogen; Roads, Rail and Ports; Coal; Gold; Platinum; Battery Metals; etc.

Already a subscriber?

Forgotten your password?







sq:0.608 0.668s - 294pq - 2rq
Subscribe Now