Storage developer
HV / MV substation for a battery storage plant
Transformers, switchgear, cables, protection and earthing. Preparation of tender documents and follow-up through to construction.
Service
MV / HV design team support
We provide ad hoc support to design and supervision engineering (maîtrise d'œuvre) teams on the MV / HV aspects of their projects.
Many design and supervision engineers (buildings, industry, energy) have a high-voltage package in their project without a specialist in house. We provide MV / HV expertise for as long as needed, under their direction, and the design and supervision role remains theirs.
In practice, we write or review the high-voltage part of the tender documents, carry out the calculations that determine the technical choices, analyse the bids for this package, review the execution studies (VISA) and attend testing and energisation.
01What we do
Design
- MV / HV calculation notes
- Technical specifications for the high-voltage package
- Schematic diagrams
Construction
- Technical bid analysis for the package
- Design review (VISA) of execution studies
- Support during testing and energisation
02Examples
03Our offer
Usual content of an offer for this type of assignment. The exact scope, deliverables and price are set in the quotation.
- Package 1Scoping
MV / HV scope, deliverables and milestones agreed with the design team.
- Package 2Calculations and specifications
Calculation notes and technical specifications for the high-voltage package.
- Package 3Tendering and execution
Technical bid analysis for the package, design review (VISA), answers to questions.
- Package 4Testing
Attendance at critical tests, opinion on punch-list items.
04How we work
- 01Scoping
MV / HV scope, deliverables and milestones agreed with the design team.
- 02Calculations and specifications
Calculation notes, technical specifications for the package.
- 03Tendering and execution
Bid analysis, design review (VISA), answers to the contractor's questions.
- 04Testing
Attendance at critical tests, opinion on punch-list items.
05References
Data centre, Île-de-France
225 / 20 kV substation
Review of the drawings for the entire substation package against the client's requirements, with the list of major deviations.
06Frequently asked questions
Do you act as the design and supervision engineer?
No. We provide technical support to a design and supervision engineering team, which keeps the lead and the responsibility for the project.
For how long?
Anything from a single calculation note to work over the full duration of the high-voltage package.