Lesedi Energy

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The Four-Pillar Optimisation Framework

Water heating is one of the largest parts of a typical household electricity bill. We tackle the biggest loads first, so any later inverter, battery and solar system can be sized to the load that remains.

  • Pillar 1

    Smart Geyser Controls & Timed Lighting

    Digital Wi-Fi geyser switches, automated DB timers and timed/occupancy lighting relays that stop 24/7 element reheating and forgotten lights, while keeping a safe 60°C anti-Legionella temperature.

    Smarter geyser scheduling can reduce how much electricity your geyser uses.

    Element can heat 5/24 h · heats only in scheduled windows

  • Pillar 2

    Thermal Insulation Wrap & Pipe Lagging

    Heavy-duty geyser insulation blankets and hot-pipe lagging that keep heat inside existing geysers in cold Pretoria roof cavities.

    Better insulation can reduce standby heat loss, at a modest upfront cost.

  • Pillar 3

    LPG Gas Geysers & Cooktop Conversion

    Instantaneous LPG gas water heaters and gas stoves/cooktops installed by SAQCC Certified Gas Practitioners – with no electric draw during load-shedding.

    Moving water heating and cooking to gas can take large loads off your electricity bill.

    Illustrative only: less of your household load still billed by the grid.

  • Pillar 4

    Pure Sine Wave UPS & Rooftop Solar PV

    Pure sine wave UPS lithium battery systems for Wi-Fi, lighting and home-office continuity, scaling to rooftop solar PV – installed by registered electricians with SANS 10142-1 compliant wiring.

    Solar generation and battery backup can reduce how much you draw from the grid.

    Illustrative only: less of your household load still billed by the grid.

Expected financial & operational benefits

PillarIndicative impactOutcome
Pillar 1 & 2: Smart Switch & InsulationLower geyser drawSmart load management can reduce your bill with a modest upfront cost
Pillar 3: Gas Geyser & Stove RetrofitLower grid loadMoves the largest water-heating & cooking loads off electricity billing
Pillar 4A: Pure Sine Wave UPS SystemLoad-shedding backupKeeps Wi-Fi, smart lighting, security and home-office power running
Pillar 4B: Rooftop Solar PV ArraySelf-generationLong-term hedge against rising City of Tshwane & Eskom tariffs
Smart Energy & Battery Analytics PortalEvening Peak Battery ModeMulti-line telemetry graphs, battery tracking and reduced evening grid draw