90 UTILITIES & SERVICES
RESIDENTIAL AND COMMERCIAL EV INFRASTRUCTURE HAS BEEN A HUGE CONVERSATION POINT
detailed information they need to make informed product decisions is key, as is access to BIM & CAD packages to help specifi ers visualise our chargepoints in a development’s design.
INSTALLATION The fi rst thing that needs to be considered when selecting the right charge point is where it will be located. For example, a home charger is likely to only be used by you and often only once a day (overnight), whereas chargers located in a residential estate or commercial development are likely to be used by a number of different electric vehicles and subject to a greater level of wear and tear. This is where BasicCharge and Quantum chargers step in. Furthermore, factors such as the complexity of the installation, site conditions, the types of chargers, and labour will determine the installation cost. A fully qualifi ed and experienced EV chargepoint installer will be able to provide the best advice on what would work for a specifi c location and based on their assessment, they will give customers an accurate cost for the installation. To assist in this process, manufacturers can recommend an Approved Installation Partner, who can offer a full turnkey solution from site survey to civils, installation, and commissioning. Additional considerations for commissioning, like opting for a wireless setup via Bluetooth allow for Building Control approval before the homeowner
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or resident installs Wi-Fi. This approach therefore gives specifi ers the freedom to set up chargepoints without ongoing costs to the developer until the property is occupied.
LOAD BALANCING & MANAGEMENT Adding chargepoints to a development means that the demand on its available electrical load can increase notably. This therefore infl uences the capacity needed onsite.
Load balancing solutions can allow a developer to increase the number of chargepoints they can operate on the site’s existing available supply. Rolec can provide this in two ways. For single charging units, Automatic Dynamic Load Balancing via a CT clamp that is attached around the property’s live cable between the meter and consumer unit. For multiple charge points, a load management profi le is created at the point of installation and balances the property’s available power: Dynamic Load Management via a DLB & Fuse Protection Device which is connected directly to the main electrical supply.
CHARGING SPEED For homes, a 7.4 kW charger is the industry standard and is in fact required to meet Part S of the Building Regulations. Since the user is likely to plug in for eight hours overnight or to top up during their off-peak tariff hours.
On the other hand, commercial spaces
would typically opt for either 7.4 kW or 22 kW chargers for general charging, and fl eet operators may look toward DC rapid charging with speeds of up to 650 kW.
MID-METERING MID-approved metering is essential for accurately monitoring energy usage and producing automatic billing. This is something that is especially important to consider when creating a public or shared charging network. For this reason, the commercial/public charging solutions we have developed come equipped with in-built ‘class B accurate’ MID-metering as standard, while many other models on the market do not.
SOLAR
As part of a developer’s journey to future proofi ng your development, it is important to consider how the chargers will work with any existing or future solar arrays. Not all chargers are created equal, and some models may not be compatible with solar power.
The introduction of EVO to Rolec’s AC range earlier this year also marks the arrival of a new way to solar charge. With the ECO+ smart solar feature, EVO can detect and allocate surplus solar energy generated from a home to power an electric vehicle, offering a 100% renewable, as well as ‘cost-free’ charge.
Becky Hornby is business development manager at Rolec
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