The Megawatt Saver 150 Solar PV Water Heating unit with Full Installation
Convert Your Electric Geyser into a Smart, Energy-Efficient Solar Water Heating System
The Geyserwise Megawatt Saver (MWS) 150L SMART Solar Geyser Conversion Kit allows you to convert any standard electric geyser into a solar-powered water heater without modifying plumbing or replacing the element. This version excludes solar panels, making it ideal for users who already have compatible photovoltaic (PV) panels.
Unlike traditional solar thermal geysers, which rely on complex water circulation systems, this plug-and-play PV-powered solution uses DC-to-AC conversion technology to power the existing geyser element, ensuring maximum efficiency and cost savings.
The system is powered by an intelligent MWS Controller, which converts DC solar energy to AC, allowing your geyser to function normally with solar power. It also integrates seamlessly with the Tuya/SmartLife Wi-Fi app, enabling remote control, scheduling, and monitoring for a smarter energy-efficient experience.
Full Wi-Fi Connectivity & Smart Control
Tuya/SmartLife app integration for real-time monitoring, remote control, and smart automation.
View water temperature, solar energy usage, and savings via smartphone.
Set heating schedules and timers remotely for optimized energy consumption.
AC Boost Mode for manual override, ensuring instant hot water when needed.
Competitive capital cost, no maintenance costs and a long lifetime.
Converts a standard electric geyser into a solar PV water heater. No element change and no inverter or batteries needed.MWS SMART Controller (MPPT Solar Power Management System)
MWS SMART Controller (MPPT Solar Power Management System)
Input Voltage Range: 125V DC – 350V DC
Maximum Input Power: 4000W
Solar Input Current: 15A Max
MPPT Operating Range: 120V DC – 350V DC
Solar Output Voltage: 40V – 230V RMS (Modulated Sine Wave)
Easy compliance with SANS 10400-XA2 and can help achieve EDGE certification.
The Megawatt Saver range operates on a basic principle: enabling a direct connection of electricity produced by solar PV panels to a standard electric geyser. This means the Megawatt can run completely off-grid, or with AC power as back-up… No inverter or battery needed!
A smart and simple way for property developers to meet SANS 10400-XA requirements while ensuring that future homeowners have access to a reliable, maintenance-free solar PV water heating solution that will also translate into years of cost savings.
Designed to match the decades-long lifetime of solar PV panels, the Megawatt Saver is robust, has over- and undervoltage protection.
"Build-to-rent" property developers can take advantage of the Section 12B tax savings.
Thousands of Megawatt Saver solar PV water heating systems installed across South Africa. No maintenance and simple user controls means fewer callouts and user support requests.
The MWS system is the most affordable solar PV unit in its class.
Easy installation: No need to replace elements or install and wire multiple components.
