Description
Geyserwise MWS (Megawatt Saver) MPPT Solar Geyser Controller with Tuya Wi-Fi
Convert Solar Power Directly into Hot Water with Maximum Efficiency
Unlock the full potential of your solar PV system with the Geyserwise MWS (Megawatt Saver) MPPT Solar Geyser Controller. Purpose-built for direct solar PV water heating, the MWS intelligently converts electricity generated by your solar panels into hot water with up to 99% conversion efficiency, helping you dramatically reduce your electricity bills while making better use of your available solar energy.
Using advanced Maximum Power Point Tracking (MPPT) technology, the controller continuously adjusts to changing sunlight conditions, ensuring your solar panels operate at their optimum output throughout the day. Combined with integrated Tuya Wi-Fi connectivity, you can monitor system performance, view temperatures, and manage your hot water system remotely using the Tuya Smart or Smart Life app.
Whether you’re building a new solar water heating system or upgrading an existing installation, the Geyserwise MWS provides an intelligent, reliable, and highly efficient solution for solar-powered water heating.
Need Geyserwise Accessories?
Looking for additional Geyserwise accessories such as flanges, probes, thermostats, sensors, or replacement parts? We can supply a wide range of genuine Geyserwise components. Simply email sales@smartpad.co.za with your requirements, and our team will be happy to assist you.
Advanced MPPT Solar Technology
Unlike conventional controllers that waste valuable solar energy, the Geyserwise MWS uses sophisticated Maximum Power Point Tracking (MPPT) technology to extract the maximum available power from your solar panels.
Benefits include:
- Up to 99% MPPT conversion efficiency
- Maximum energy harvesting throughout the day
- Improved performance during changing weather conditions
- Better utilisation of your solar PV investment
- Faster and more efficient water heating
By constantly tracking the optimum operating point of your solar array, the MWS helps produce more hot water using the same solar panels.
Direct PV-to-Water Heating
The MWS is designed specifically for direct solar PV water heating, allowing electricity generated by your solar panels to heat your geyser element directly.
This provides:
- Highly efficient solar water heating
- Reduced reliance on grid electricity
- Lower monthly electricity bills
- Greater energy independence
- Improved return on investment from your solar installation
Instead of exporting excess solar energy or leaving it unused, you can store that energy as hot water for your household.
Smart Control with Tuya Wi-Fi
Integrated Wi-Fi allows convenient remote monitoring through the Tuya Smart and Smart Life apps.
Monitor and control your system from anywhere by:
- Viewing system status
- Monitoring water temperature
- Checking solar heating performance
- Managing operating modes
- Receiving notifications
- Adjusting controller settings remotely
Whether you’re at home or away, your hot water system remains within easy reach.
Hybrid Solar Heating
The Geyserwise MWS supports hybrid operation, combining solar energy with conventional electrical heating when required.
This ensures:
- Reliable hot water throughout the year
- Automatic backup during poor weather
- Maximum use of available solar energy
- Reduced dependence on grid electricity
- Consistent household comfort
Enjoy the benefits of solar while maintaining dependable hot water during cloudy conditions or periods of high demand.
Easy-to-Read LCD Display
The integrated LCD display provides real-time system information at a glance.
View:
- Water temperature
- Solar heating status
- PV operating information
- Controller status
- System diagnostics
- Operating mode
Quick access to key information makes monitoring your system simple and convenient.
Built-In Protection & Reliability
Designed for long-term operation in demanding solar environments, the controller includes multiple protection features to safeguard your system.
These include:
- MPPT power optimisation
- Temperature protection
- Electrical protection
- Intelligent system monitoring
- Stable controller operation
Built to provide reliable performance year after year.
Ideal Applications
✔ Direct Solar PV Water Heating Systems
✔ Residential Solar Geysers
✔ Hybrid Solar Water Heating
✔ Off-Grid Solar Installations
✔ Grid-Assisted Solar Systems
✔ Energy-Efficient Homes
✔ New Solar Water Heating Projects
✔ Existing Solar Geyser Upgrades
Technical Highlights
| Specification | Details |
|---|---|
| Controller | Geyserwise MWS (Megawatt Saver) |
| Technology | MPPT Solar Controller |
| MPPT Efficiency | Up to 99% |
| PV Input Voltage | 120–350V DC |
| Connectivity | Integrated Tuya Wi-Fi |
| Mobile App | Tuya Smart / Smart Life |
| Heating Method | Direct PV-to-Geyser Element |
| Operation | Solar & Hybrid Heating |
Compatibility
The Geyserwise MWS is designed for direct solar PV water heating systems using standard geyser elements.
Suitable for:
- New solar water heating installations
- Existing solar geyser upgrades
- Residential PV systems
- Hybrid solar hot water systems
Please verify that your solar array, geyser element, and electrical installation meet the required voltage and power specifications before installation. Professional installation is recommended.
Installation Notes
The controller forms part of a complete solar water heating solution.
A typical installation includes:
- Solar PV panels
- Geyserwise MWS controller
- Compatible geyser element
- DC isolators and protection devices
- Appropriate DC cabling
Some of these components may be available separately or as part of a complete Geyserwise MWS system.
Why Choose the Geyserwise MWS MPPT Solar Geyser Controller?
The Geyserwise MWS (Megawatt Saver) is designed to help homeowners get the maximum value from their solar PV investment by converting sunlight directly into hot water with exceptional efficiency. Combining advanced MPPT technology, integrated Tuya Wi-Fi connectivity, intelligent hybrid operation, and reliable Geyserwise engineering, it delivers a smart, energy-efficient solution for modern solar water heating.
Whether you’re looking to reduce electricity costs, increase energy independence, or build a smarter solar home, the Geyserwise MWS provides a powerful and future-ready controller for direct PV water heating.
