Hot water through PV solar power

How it works:

1. Electricity surplus:
The photovoltaic system often generates more electricity than is directly consumed in the household, especially when the sun is shining.

2. Heating element:
Excess electricity is fed to a heating element in the hot water tank.

3. Heat conversion:
The heating element converts the electricity into heat and heats the water in the storage tank.

100-liter hot water tank ETWS

The Hot water tank The 100-liter ETWS combines state-of-the-art technology with high reliability for centralized hot water heating. A highly efficient heat exchanger with a surface area of ​​1.2 m² harnesses the thermal energy from your solar system or boiler to heat up to 180 liters of domestic water conveniently and economically.

A high-quality enamel coating on the inside of the tank, complemented by a generous magnesium anode, ensures long-lasting corrosion protection. Thanks to the integrated polyurethane insulation, heat loss is kept to a minimum (only 28 W power loss) and the temperature is maintained up to a maximum of 95°C.

High-performance bifacial PV solar module Trina Vertex S+

The Trina Vertex S+ module delivers a peak output of up to 435 Wp and achieves one of the best efficiency levels on the market at 21.8%. The bifacial double-glass design effectively utilizes both the front and back light, increasing energy yield by up to 85%.

The robust construction, with a compressive strength of 5,400 Pa at the front and 4,000 Pa at the rear, ensures maximum resistance to hail, snow, and wind pressure. Measuring 1,762 mm long, 1,134 mm wide, and weighing 21.8 kg, the module is versatile for use on residential and commercial roofs.

1.5 kW heating element for reliable support

The 1.5 kW Electric heating element Made of high-quality stainless steel, it allows precise temperature control between 5 °C and 75 °C thanks to its integrated thermostat. A switch-on hysteresis of 7–10 °C ensures stable temperature values ​​and minimizes switching cycles.

With its frost protection function and a safety temperature limiter at 93°C, the heating element can be used safely even on cold days. Its compact installation length of 300 mm, IPX4 protection rating, and operating pressure of up to 10 bar make it the ideal addition for Hot water storage tanks and PV solar systems.

Technical data

Technical data 100 litre hot water tank

• Volume: 100 liters
• Heat exchanger surface: 1.2 m²
• Heat exchanger capacity: 5.27 liters
• Connection flow and return heating: 3/4" AG
• Connection flow and return domestic water: 3/4" AG
• Circulation connection: 3/4" AG
• Magnesium anode connection: 1 1/4" IG
• Connection for electric heating: 1 1/2" IG
• Thermal insulation: polyurethane foam (PUR)
• Max. operating temperature storage 95 °C
• Max. operating pressure storage tank/heat exchanger: 6 bar
• Max. operating temperature heat exchanger 100 °C
• Loss: 28 watts
• Dimensions with insulation (diameter x height): 625 x 770 mm
• Weight (empty): 64 kg

Technical data of the heating element at a glance

• Heating output: 1.5 kW
• Temperature range: 5-75°C
• Switch-on hysteresis: 7-10°C
• Installation length: 300 mm
• Unheated length: 70 mm
• Safety temperature limiter: 93°C
• Connection: 1 ½" AG
• Max.Operating pressure: 10 bar
• Protection class: IPX4
• Heating coil material: Alloy 825
• Housing material: plastic, white
• Power supply: 230V/16A, single-phase
• Connection cable: 1.5 meters with Schuko plug

Technical data module

• Module efficiency: 21.8%
• Number of cells: 144
• Cell type: monocrystalline
• Technology: bifacial
• Cable length: 1,100 mm (+)/1,100 mm (-)
• Connector system: MC4-EVO2
• Frame color: black
• Frame height: 30 mm
• Module width: 1,134 mm
• Module length: 1,762 mm
• Weight: 21.8 kg
• Pressure load front: 5,400 Pa
• Pressure load rear: 4,000 Pa
• Power tolerance (positive): 0 - 5 Wp

Scope of delivery

• 1 x Hot water tank 100 liters
• 1 x heating element 1.5 kW
• 4 x PV panels 435 WP Bifacial Black Frame
• 1 x Hoymiles 1600 W inverter
• 1 x PV connection cable 10 m
• 1 x DTU WLAN stick

Download

• Operating instructions for drinking water storage tank
• Heating element operating instructions
• Datasheet Trina Vertex S+