Wave Electrical Solutions completed a comprehensive Saltash EV installation featuring twin 7.4kW MyEnergi Zappi charging points with intelligent load management technology. This Cornwall-based project demonstrates our expertise in modern electric vehicle charging solutions that adapt to your home's electrical demands.
This Saltash EV installation perfectly demonstrates how modern charging technology can adapt to existing home electrical systems. The property owners required dual charging capability while maintaining electrical safety and preventing system overloads during peak demand periods.
The installation centred around twin 7.4kW MyEnergi Zappi charging points, strategically positioned to serve multiple vehicles efficiently. These untethered units provide flexibility for different cable types and vehicle models, whilst their robust construction suits Cornwall’s coastal climate conditions. The MyEnergi Zappi represents current thinking in EV charging technology, combining reliable performance with intelligent energy management features.
Each charging point operates on dedicated electrical circuits, providing independent power supply paths that maintain system integrity. The installation required careful consideration of the existing consumer unit capacity and the property’s overall electrical load characteristics. Dedicated 40A circuit breakers protect each charging circuit, providing appropriate overcurrent protection whilst allowing maximum charging performance when conditions permit.
The standout feature of this Saltash EV installation involves the MyEnergi Harvi load management device, which transforms how the charging system interacts with the property’s electrical supply. This technology continuously monitors the property’s total electrical demand, adjusting charger output automatically to prevent supply overloading. During periods of high household electrical usage, the system reduces charging power, whilst increasing output when demand decreases.
The Harvi device installation required precise positioning within the property’s roof space, close to both the consumer unit and the external charging points. This positioning optimises signal transmission whilst maintaining accessibility for future maintenance requirements. The device connects via dedicated communication cabling, creating a network that links both charging points with the central monitoring system.
Installation methodology focused on minimising disruption whilst maintaining electrical safety standards throughout the process. The existing electrical infrastructure required assessment to determine circuit capacity and earthing arrangements. New cable runs followed optimal routing paths, avoiding structural elements whilst maintaining appropriate segregation from other electrical installations.
The untethered configuration offers significant advantages for properties serving multiple vehicle types. Unlike tethered units with fixed cables, untethered charging points accept various cable types and lengths, accommodating different vehicle charging port locations. This flexibility proves particularly valuable for households with changing vehicle requirements or visitor charging needs.
Circuit protection arrangements follow current electrical regulations, with each charging point receiving individual RCBO protection. These devices combine overcurrent and earth leakage protection functions, providing comprehensive safety coverage for the charging circuits. The protection devices integrate seamlessly with the existing consumer unit arrangement, maintaining system coordination throughout the installation.
Load management technology represents a sophisticated approach to domestic EV charging, particularly relevant for properties with limited electrical supply capacity. The system prevents the common problem of supply overloading during simultaneous charging and high household demand periods. This intelligent approach maximises charging efficiency whilst maintaining electrical system stability.
The installation process included comprehensive electrical testing procedures, generating the required Electrical Installation Certificate documentation. These certificates provide formal verification of installation compliance with current electrical standards, supporting both insurance requirements and future property transactions. Building Control notification ensures regulatory compliance for this type of electrical modification.
Installation positioning considered both practical accessibility and aesthetic integration with the property’s external features. The mounting locations provide convenient vehicle access whilst maintaining appropriate clearances from other building elements. Weather protection features built into the charging units suit Cornwall’s variable climate conditions throughout the year.
The dual charging capability addresses the growing trend towards multi-EV households, where charging scheduling becomes increasingly important. The load management system automatically coordinates charging between both points, optimising available electrical capacity without requiring manual intervention. This automation proves particularly valuable for overnight charging periods when household electrical demand typically reduces.
Modern EV charging installations require careful consideration of future electrical system developments. This installation provides foundation capacity for potential solar panel integration or battery storage systems, with the MyEnergi ecosystem designed to accommodate additional energy management components. The intelligent charging system can integrate with renewable energy sources, maximising self-consumption of generated electricity.
The project demonstrates how contemporary electrical technology adapts to changing domestic requirements whilst maintaining safety and efficiency standards. The combination of reliable charging hardware with intelligent management systems creates installations that perform consistently across varying operational conditions.
