# Services

Electrical scope from the point of connection to the string.

Source: https://crestwatt.com/services/
Publisher: CrestWatt — Electrical contracting for utility-scale solar, storage and grid connections.
Contact: info@crestwatt.com
Language: en-GB

Each service is available as a standalone contract. Where two or more are combined, the interfaces between
them are managed within CrestWatt's scope rather than across contract boundaries.

## 01 ICP and Grid Connections

Contestable connection works, 11 kV to 132 kV, from application to DNO adoption.

Standards cited: ENA EREC G99, ENA EREC G81, ENA TS 41-24, BS EN 50522, BS 7671, Distribution Code.

Full page: https://crestwatt.com/services/icp-grid-connections/
Plain text: https://crestwatt.com/services/icp-grid-connections.md

## 02 Cable Termination and Testing

LV, MV and HV terminations to 132 kV; DC crimping and MC4 assembly; fibre fusion splicing; Modbus RS-485 termination. IR, VLF, sheath, TDR, OTDR and certification.

Standards cited: IEC 60352-2, IEC 62852, IEC 61280-4-1, IEC 61300-3-35, ISO/IEC 11801, EN 50173, EN 50174, IEEE 400.2, IEC 60229.

Full page: https://crestwatt.com/services/cable-termination-testing/
Plain text: https://crestwatt.com/services/cable-termination-testing.md

## 03 Testing and Commissioning

IEC 62446-1 DC commissioning; AC, LV and HV pre-energisation testing; protection commissioning; SCADA point to point; witness testing; FAC compilation.

Standards cited: IEC 62446-1, BS 7671, IEEE 400.2, ENA EREC G99, IEC 61850.

Full page: https://crestwatt.com/services/testing-commissioning/
Plain text: https://crestwatt.com/services/testing-commissioning.md

## 04 HV Substation and Cable Works

Substation electrical packages and HV cable supply and installation, 11 kV to 132 kV, including switchgear, transformers, DC auxiliary systems and cable accessories.

Standards cited: IEC 61439, IEC 60502-2, IEC 60840, ENA TS 41-24, BS EN 50522.

Full page: https://crestwatt.com/services/hv-substation-cable-works/
Plain text: https://crestwatt.com/services/hv-substation-cable-works.md

## 05 Protection, Control and Switchgear

Relay, CT and VT supply; panel design, build and wiring; IEC 61850 configuration; settings; secondary and primary injection; site acceptance.

Standards cited: IEC 61850, GOOSE / MMS, Secondary injection, Primary injection, DNO witness.

Full page: https://crestwatt.com/services/protection-control-switchgear/
Plain text: https://crestwatt.com/services/protection-control-switchgear.md

## 06 Electrical Site Supervision and QA

Embedded electrical supervisors and QA engineers providing inspection, witness testing and structured digital records.

Standards cited: Digital inspection records, Daily defect reporting, Weekly quality report, DNO / ICP witness points.

Full page: https://crestwatt.com/services/site-supervision-qa/
Plain text: https://crestwatt.com/services/site-supervision-qa.md

## 07 Engineering and Grid Studies

Electrical and PV design, earthing design, protection studies, load flow and fault level, G99 compliance, connection application support.

Standards cited: BS 7671, IEC 60287, ENA TS 41-24, BS EN 50522, ENA EREC G99, ENA EREC P28.

Full page: https://crestwatt.com/services/engineering-grid-studies/
Plain text: https://crestwatt.com/services/engineering-grid-studies.md

## 08 Operations and Maintenance

Planned preventive maintenance, protection re-verification, thermography, HV cable fault location and repair, authorised person cover.

Standards cited: BS 7671, ENA TS 41-24, Thermographic survey, HV authorised person.

Full page: https://crestwatt.com/services/operations-maintenance/
Plain text: https://crestwatt.com/services/operations-maintenance.md