(10A is the utilisation capability for ELWA, there is no problem with using bigger PV panels, the Isc above 10A is dissipated. You can estimate the system by using ELWA dimensioning sheet link above, only red conditions should be avoided)
ELWA is a 2 kW photovoltaic water heating device. Direct current from photovoltaic modules is transferred directly to the built-in heating element and immediately converted into heat without loss. The built-in MPP Tracker ensures that the PV generator is always operated at the optimum operating point (similar to a PV inverter). For operation, no connection to the mains is required as the unit is powered by the PV generator (pure off-grid operation). The desired DHW temperature is set with a rotary knob, LED displays inform about the current device status.
Due to the patented boost-backup function, hot water supply can be guaranteed even during bad weather. This makes it possible to completely switch off the conventional heating system in summer. This also increases its lifespan.
For commissioning the boost-backup function, ELWA can be easily connected to a mains socket. There is no feed-in into the grid, so it does not need a metering point like a grid-connected PV system.
|Easier and cheaper than thermal solar systems|
|No grid operator approval required
You save yourself tedious administrative work, because ELWA does not feed electricity into the grid. Especially in multi-storey apartment projects, the approval can take several months for grid-connected PV systems.
|Easiest installation with "cables instead of pipes", less valuable copper, no maintenance costs.|
|Stratification-heating possible with 2 devices.|
|Even works in case of power failure.|
|Boost-backup optionally usable.|
|No anti-freezing liquid necessary|
Cables have almost no energy loss compared to pipes
OPTIONAL USB Interface for ELWA Off-Grid Electrical Water Heater
ELWA has an integrated data logger. With the USB interface and the free ELWA software, you can read out your solar yields and see, for example, the temperature increase of your hot water. In addition, device settings can be easily customized for your individual needs.
Super High Efficiency Mono PERC Module (CS3L-370MS) Dimensions: 1765 X 1048 X 35mm
CANADIAN SOLAR INC.is committed to providing high quality solar products, solar system solutions and services to customers around the world. As a leading PV project developer and manufacturer of solar modules with about 30 GW deployed around the world since 2001, Canadian Solar Inc. is one of the most bankable solar companies worldwide.
With proprietary mono wafer and cell technologies Canadian Solar have developed an extraordinary module rage. Combining the best technology and design, it also reduces LCOE and installation costs.
The Super High HiKu mono modules with dimensions of 1765 x 1048 x 40mm, have the following unique features:
MORE RELIABLE (THANKS TO HALF CUT CELL TECHNOLOGY):
Cell: 120 x dual-cell Mono, 156 x 78 mm
Dimensions: 1765 x 1048 x 35 mm
Weight: 20.5 kg
Premade 6mm Solar Cable with Male to Female MC4 connectors, quick and easy to install.
(Please note if using as a cable run from panel to controller, you would cut in half giving you 2 x 10m lengths, MC4 to bare wire.)
Double Insulated UV protected solar cable
Max load: 70A in air
Our solar cable is ozone resistant according to BS EN 50396
UV resistant according to HD 605 S2 and is tested for durability according to EN 60216
Flexible tinned copper conductor
Class 5 flexible tinned copper conductor
Halogen-free cross-linked compound
Halogen-free cross-linked, flame retardant compound
Fitted with Staubli 4-6mm MC4s - Staubli MC4 Link
Wire size range: 6mm2
One pole DIN rail mount fuse holder for 10 X 38 type fuses, suitable for protecting and isolating solar panel strings between the array and the charge controller input for example.
Rated to 1000VDC, 32A, accepts up to 16mm² cable. For use stand alone or for incorporation into a PV combiner Box with the 13 way bus bar and feeder terminal to take off the supply to a solar charge controller or solar inverter.
Choose fuse separately
Item dimensions 75mm H X 16mm W X 55mm D
Protect your off-grid or grid tied PV system from unexpected string faults using Mersen’s HelioProtection® fuse line
Developed specifically for the protection of PV string wiring for 1000VDC industrial rooftop and utility scale photovoltaic systems. Its robust construction makes it ideal for continuous temperature and current cycling withstand adding to system longevity. The 1000VDC rated fuse is designed for low minimum breaking capacity capabilities of 1.35 times the fuse rated current value, allows for safe circuit interruption under typical low fault current conditions produced by PV arrays.
The 10 X 38mm fuse can be used standalone with the DIN mount string fuse holder to fuse a single circuit or as a bank of fuses in a solar combiner box.
This item fits String Fuse holder