NOTE THIS ARTICLE IS FOR OUR LEGACY PRODUCT THAT CEASED PRODUCTION IN 2022
Overview
Microgeneration systems such as Solar PV and small wind turbines are at their most efficient when the generated energy is consumed on-site rather than exporting it to the grid. This is what we call 'self-consumption'.
zappi is a Mode 3 charging station, compatible with all electric vehicles that comply with EN 62196 and EN 61851-1 plug-in electric vehicle standards.
zappi works like any regular charging point but has special ECO charging modes that will benefit homeowners with grid-tied microgeneration systems e.g. wind or solar generation. Two special ECO charging modes automatically adjust charging current in response to on-site generation and household power consumption. In FAST charge mode, zappi operates like an ordinary EV charger.
A grid current sensor (supplied) simply clips around the incoming supply cable and is used to monitor excess power. When using the special ECO charge modes, will automatically adjust the charge rate in response to available surplus.
Feature Set
3 charging modes: ECO, ECO+ & FAST
• Optimises microgeneration self-consumption
• Works with solar PV, wind turbine or micro-hydro systems
• Economy tariff sense input
• Programmable timer function
• Charge and event logging
• Remote control and monitoring add-on option
• Pin-code lock function
• Tap operated display backlight
• Built in protection against the loss of the protective neutral and earth (PEN) conductor as required by BS
7671:2018 Amendment 1:2020(The “Wiring Regulations”)
• Integral cable holster (tethered units)
• Supplied with 1 x clip-on grid current sensor (x3 if purchasing a 3-phase unit)
• Illuminated display – for convenience, the display can be illuminated by simply tapping the front cover
Overview Diagram
Controls & Indicators
| 1 | Display |
Graphical LCD display with LED backlight. Backlight can be activated by tapping the unit |
| 2 | Front Cover | The white front cover hides the enclosure screws |
| 3 | Tethered Charging Cable | The charging cable is 5m or 8m and is fitted with Type 1 or Type 2 plug |
| 4 | Control Buttons |
Four tactile buttons used to navigate the menus and alter settings:
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| 5 | Integrated Cable Holder (tethered units only) | When not in use, the charging cable should be wrapped around the unit and secured in the cable holster (tethered units). |
| 6 | Charging Connection Point (untethered units) | When cable not in use, the charging cable should be unplugged and stored in a cool dry place |
| 7 | RGB Indicator | Visual Indicator that changes colour dependant on the charging state |
Display Icons
| 1 | Import / Export Power |
The power being either imported or exported from or to the grid (kW). The direction of the arrows indicate if the property is currently importing power (left) or exporting power (right) The size of arrows is proportion to the level of power. When the property is neither importing or exporting power, the figure will be 0.0kW and there will no animated arrows. The property is then said to be ‘in balance’ |
| 2 | House Load Power |
The power that the property is currently using in kW It does not include any surplus power being sent to the heater(s) Note: This is displayed only when the Generation Sensor is installed (either connected to CT2 input or a harvi device) |
| 3 | Status Text | The current status is displayed here |
| 4 | Generation Power | The power being generated at this time in kW Note: This is displayed only when the Generation Sensor is installed (either connected to CT2 input or a harvi device) |
| 5 | Lock Icon | Operation lock is active |
| 6 | Date & Time | The current date and time |
| 7 | Mode Icons | These icons indicate that the import limiting is active (house) or the e-Sense input is live (e) |
| 8 | zappi Icon | This zappi unit. If there are wavy lines above the icon, the unit is thermally limiting (the output power will be temporarily reduced) |
| 9 | Charge Mode | Shows the selected Charging Mode; FAST, ECO or ECO+ |
| 10 | Charge Delivered to EV | The accumulated charge energy that has been sent to EV in this charge session |
| 11 | Current Charging Power | When the EV is charging, arrows will show here along with the charging power in kW |
| 12 | Green Level of last charge | This is percentage of ‘Green’ energy for the last charge session, this is shown at the end of a charge or when the EV is unplugged |