SIGENERGY DC CHARGER INSTALLATION · EDINBURGH & EAST LOTHIAN

Your electric car can be more than transport. Vehicle-to-load (V2L) powers individual appliances; vehicle-to-home (V2H), also called vehicle-to-house, supplies a property through a compatible, professionally designed energy system.

Renew-Able Solutions installs the Sigenergy 12kW and 25kW DC charging modules in Edinburgh, East Lothian and wider Central and East Scotland. We help you assess charging, solar integration and the potential for V2H around your exact vehicle and home.

The 12kW model is specified by Sigenergy at up to 12.5kW. Bidirectional operation depends on the vehicle, software, system configuration and applicable approvals; installing a DC charger alone does not establish V2H compatibility.

On this page: V2L and V2H explained · 12kW vs 25kW · Vehicle checks · Solar and backup · Installation and cost · FAQs

V2L lets a suitably equipped electric car supply electricity through a vehicle socket or manufacturer-approved adapter. Typical uses include charging a laptop, running camping equipment or powering suitable tools within the vehicle’s output limit.

The car’s own equipment produces the AC supply. A Sigenergy DC charger is not required for ordinary V2L use. Check the vehicle manual for the permitted adapter, continuous output, starting-load limits and minimum battery level. For example, Hyundai describes up to 3.6kW V2L on eligible INSTER specifications; this is not a universal rating for electric cars.

V2H uses energy from a compatible EV battery to supply home circuits through a suitable bidirectional charging and home energy system. With the right design, it can support household consumption while the car is connected and help provide backup during a power cut.

V2L capability, a CCS2 socket and ordinary DC charging each tell you something different about a car. None, by itself, confirms that the car can discharge through a Sigenergy system. We establish the intended V2H function before specifying the equipment.

V2G sends energy from an EV back to the public electricity network. It introduces export permissions, metering and supplier or tariff requirements in addition to compatible hardware. V2H does not automatically include a paid V2G service.

Never connect a vehicle’s V2L output to a household wall socket to feed the house. Supplying fixed wiring needs a properly designed connection, protection and isolation arrangement installed by a competent electrician. An extension lead used for an appliance is not a home-backup installation.

The Sigen EV DC Charging Module forms part of the Sigenergy system and must be used with a Sigen Energy Controller. It uses a CCS2 charging connection. Unlike a typical AC wallbox, DC charging supplies the vehicle’s battery through its DC charging path, rather than relying on the car’s AC onboard charger.

The useful rate is limited by the vehicle’s accepted power and battery voltage, state of charge, temperature, available grid import, energy controller, solar generation and any battery contribution. The charger’s DC rating is also different from the home system’s AC output rating.

Illustrative charging calculation: adding 30kWh at a steady 12.5kW takes 2 hours 24 minutes; at a steady 25kW it takes 1 hour 12 minutes. These are energy-divided-by-power examples, not promised charging times. Allow for conversion losses, power limits and the car reducing its charging rate.

We assess single-phase or three-phase supply and available system power together. A 25kW DC module is not a promise of 25kW drawn continuously from a single-phase grid connection.

We check the exact vehicle before recommending V2H. Make, model, model year, market specification and software version all matter. Sigenergy publishes independent V2X field-test results; a test on a similar car is useful evidence, but it is not the same as vehicle-manufacturer approval or a guarantee for every variant.

View Sigenergy’s DC charger information and V2X field-test results. The manufacturer explains the limitations of these results, including variation by software and region.

For a useful assessment, send us:

• Your car’s make, model, year and UK specification, plus its software version if available.
• Your postcode, parking arrangement and approximate cable route.
• Details of any solar panels, home battery, inverter or existing Sigenergy equipment.
• Whether your priority is faster charging, daily household energy use, power-cut backup or possible future export.

We then check the proposed equipment combination, current manufacturer guidance, vehicle warranty conditions and any limits on discharge power or battery reserve. Where a function cannot be confirmed, your quotation should distinguish supported charging from any unconfirmed bidirectional capability.

Renew-Able Solutions is based in Tranent and serves Edinburgh, East Lothian and wider Central and East Scotland. We install both Sigenergy DC charger sizes and assess the complete home energy arrangement before recommending a specification.

1. Survey and goals: review your vehicle, electricity use, supply, parking, existing equipment and backup priorities.
2. System design: select the charger, controller, battery configuration, cable reach and any gateway or circuit alterations.
3. Connection requirements: establish the relevant distribution network operator (DNO) application or notification, export limits and equipment requirements for the proposed system.
4. Installation and commissioning: install, test and configure the agreed equipment, including load management and the supported operating modes.
5. Handover: explain the app, charging targets, battery reserves and the functions confirmed for your vehicle and system.

UK grid-connected generation and storage can fall within G98/G99 requirements, with export limitation considered where relevant. V2G needs the applicable network agreement before operation. We establish the route for your design rather than assuming that a charger purchase grants export permission. ENA’s G99 engineering recommendation includes vehicle-to-grid requirements; the current DNO requirements govern the application.

We provide a property-specific quotation. The total depends on the 12kW or 25kW module, existing compatible equipment, controller and battery requirements, gateway, cable route, groundworks, supply capacity and any distribution-board work.

Your quote confirms the exact model, installation scope, VAT treatment, manufacturer warranty terms and any separately priced work. The standard AC charger prices on our comparison page do not apply to a complete Sigenergy DC charging or V2H system.

Prepared by Renew-Able Solutions. Product and source information checked 9 September 2026. Vehicle support, software, tariff eligibility and manufacturer terms can change; these are checked again for your proposed installation.