Plant power & running cost
Add every motor and panel on site, set its kW and daily hours, and the calculator returns the plant's daily / monthly / annual energy, electricity cost and CO₂ footprint.
| Equipment name | Category | kW | Hrs / day | Duty % | kWh / day | |
|---|---|---|---|---|---|---|
| 88 | ||||||
| 2.88 | ||||||
| 105 | ||||||
| 24 | ||||||
| 57.6 | ||||||
| 9.6 | ||||||
| 20.6 | 287 | |||||
Daily energy
287kWh / day
Monthly energy
8,612kWh / month
Annual energy
104,784kWh / year
= 105 MWh/year
Daily cost
R 718
Monthly cost
R 21,531
Annual cost
R 261,961
Sizing & footprint
Peak connected load
20.6kW
Sum of installed kW — used to size genset, transformer or grid feed.
Average load
12kW
= 14.1 kVA
What the meter actually sees on average across 24 h.
Annual CO₂
99,545kg / year
= 99.5 t / year
At the current grid mix — solar PV displaces this directly.
Electrical sizing — connection, breaker & cable
Recommended phase
Threephase · 400 V
Three phase 400 V required — single-phase mains will not deliver this load.
Design / sizing current
43.7A
= 34.9 A actual (×1.25 margin)
Suggested main breaker
50A
Three-phase 400 V MCB / MCCB.
Minimum cable size
10mm² copper
= 1.24 % Vd over 30 m
Driven by ampacity, not voltage drop (Vd alone needs only 2.5 mm²).
Category breakdown
| Category | Items | Installed kW | kWh / day | Share |
|---|---|---|---|---|
| High-pressure (RO / UF) | 1 | 7.5 | 105 | 36.6 % |
| Feed / source | 1 | 5.5 | 88 | 30.7 % |
| Booster / distribution | 1 | 4 | 57.6 | 20.1 % |
| Storage / transfer | 1 | 3 | 24 | 8.36 % |
| Auxiliary / panels | 1 | 0.4 | 9.6 | 3.34 % |
| Pre-treatment | 1 | 0.18 | 2.88 | 1 % |