Genergy Projects: The Northam Booysendal Installation

 Project Northam Booysendal

The Northam Booysendal concession is situated approximately 35km from the town of Mashishing (formerly Lydenburg), straddling the border of Limpopo and Mpumalanga provinces in South Africa.

Genergy was tasked with a solution to provide hot water for 1,200 people working on the mine.

This was a two-phase project.

Phase one saw us install the following to provide for 600 users:

* 2 x 15 000L hot water storage tanks, with each tank utilising 96kW of traditional electrical resistance heating elements.

* Four banks of 30 x flat plate type solar thermal collectors each, with each bank consisting of 6 panels in series and 5 parallel rows.

* The phase one design catered for staff compliment of 600+ users over a three-shift pattern.

* Energy required to heat sufficient water for the change house was approximately 1600 kWh/Day.

* The solar fraction of the system is approximately 60% which means that 60% of the energy required to heat the water is done by means of the Solar Thermal.

* The balance of the energy required to heat the water comes from the electrical resistance elements  (also used when solar radiation levels are low).

* This system uses approximately 50% less electrical energy when compared to traditional electrical resistance heating.

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Phase two saw us scaling up, to provide hot water for an additional 600 users. We installed:

* Additional 2 x 15 000L hot water storage tanks, but the electrical elements were removed, and 8 x 45kW air source heat pumps introduced.

* Each storage tanks now has 2 x 45kW heat pumps connected to it.

* We installed an additional bank of 6 panels in series and 5 parallel rows (30 panels).

* The energy required to heat sufficient water for the change house was also approximately 1600 kWh/Day.

* The solar fraction of the system is approximately 36%. This means that 36% of the total energy required to heat the water is done by means of the Solar Thermal.

* The balance of the energy required to heat the water comes from the heat pumps  (also used when solar radiation levels are low).

* This system uses approximately 80% less electrical energy, when compared to traditional electrical resistance heating.

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