Detailed design (DC/AC) for PV, Wind and BESS
We deliver integrated DC and AC detailed design for PV, Wind and BESS projects, including IT and SCADA integration—providing a robust basis for procurement, construction and commissioning.
Detailed design
with greentech
We design your PV, wind or BESS project to a level of technical detail that enables project owners to tender on a robust basis and allows EPCs to move quickly into procurement and construction. To achieve this, we consolidate DC and AC (electrical) design into a consistent plan set and define clear interfaces for implementation. From this point onward, we also address plant control and the required network environment in concrete terms – so that SCADA integration, data points and remote access are prepared cleanly and securely from the outset.
What you receive: project documentation ready for procurement, construction and commissioning
We produce implementation-ready detailed design for PV, Wind and BESS, providing EPCs and project stakeholders with clear foundations for procurement, construction and commissioning. Depending on the project setup, we treat photovoltaics, wind and battery storage equally – ensuring consistent interfaces between DC, AC and the SCADA/IT environment.
Components of detailed design
for PV projects
We develop the generator side up to the inverter and the AC grid connection in accordance with the applicable grid code up to the grid connection point, so that execution, testing and commissioning can be planned reliably. In doing so, we define the interfaces to plant control and the IT environment (SCADA integration, data points, remote access) so that operations and handover are prepared cleanly from the outset.
Design & construction preparation
Implementation-ready documentation for installation and site logistics, ensuring routes, trenches and positions are clearly defined.
Overview/site plans with plant design (PV field, inverter/substation positions, roads/fence)
DC detailed design (up to the inverter)
Specific requirements for interconnection, DC cabling and grounding on the generator side.
AC detailed design / electrical design according to grid code (up to the grid connection point (MV/HV))
Implementation documentation for the AC connection at medium-voltage and – depending on the connection – high-voltage level up to the grid connection point, designed for generation operation and commissioning of the PV plant.
SCADA & IT
As part of the detailed design, we develop and implement – aligned with the plant design – a coherent SCADA & IT setup. We design, implement and document project-specific plant communications and lay the groundwork for secure remote access, SCADA/control-room integration, O&M workflows, and plant-level control.
Implementation of the project-specific IT network and communication environment (incl. roles & permissions concept)
Components of detailed design
for wind projects
We produce implementation-ready detailed design documentation for wind energy projects – providing a robust basis for procurement, construction and commissioning. In doing so, we define clear interfaces between plant/park infrastructure, the electrical connection up to the grid connection point, and the SCADA/IT environment.
Design & construction preparation
Implementation-ready documentation for park layout, site logistics and infrastructure (e.g., access roads, crane pads, routes), ensuring installation and workflows are clearly planned.
DC detailed design (plant side / WPP-side detailed design)
Detailed documentation for the plant-side connection and park cabling from the perspective of the generation units—as a basis for installation, testing and consistent interfaces to the AC level.
AC detailed design / electrical design according to grid code (up to the grid connection point (MV/HV))
Detailed design for the AC connection up to the grid connection point, designed for generation operation and commissioning.
SCADA & IT
As part of the detailed design, we develop and implement – aligned with the detailed plant design – a coherent SCADA & IT setup for your wind farm. We design, implement and document the project-specific communication and data integration of the WPP as well as the park infrastructure, and create the prerequisites for secure remote access as well as for the SCADA/control-room integration, O&M workflows, and plant-level control.
Implementation of the project-specific IT network and communication environment (incl. roles & permissions concept)
Components of detailed design for BESS projects
(standalone or co-location)
We develop the electrical integration of the storage system – including the battery inverter (PCS) and associated interfaces – up to the grid connection point and create clear foundations for installation, connection and commissioning. In addition, we consider the interfaces to plant control and the SCADA/IT environment (communication interfaces, data points, remote access) – and, for co-location, also where PV and BESS interact in operation and control.
Design & construction preparation
Documentation for installation, routing and civil interfaces, ensuring installation and site workflows can be planned reliably.
Cable routes/duct runs as a basis for civil works and cable laying.
Interfaces and boundary conditions to ensure the storage integration can be implemented unambiguously from a technical perspective.
Interfaces between the battery system, battery inverter and electrical infrastructure
Integration into the project-side documentation and power transfer logic
AC detailed design / electrical design according to grid code up to the grid connection point (MV/HV)
Detailed AC electrical design at medium-voltage and – depending on the connection – high-voltage level up to the grid connection point, including the relevant operating cases for charging and discharging (for co-location aligned with PV).
SCADA/IT interfaces (incl. co-location)
As part of the detailed design, we develop and implement – aligned with the plant design – a coherent SCADA & IT setup for your BESS. For co-location (PV or Wind + BESS), we consider shared park communication and a clean separation where responsibilities, data flows or security requirements demand it. This creates the prerequisites for secure remote access as well as for the SCADA/control-room integration, O&M workflows, and plant-level control.
Implementation of the project-specific IT network and communication environment for BESS (incl. roles & permissions concept)
Configuration of the data points, signals and interfaces relevant for operation, dispatch and control (incl. to inverter/battery system, park controller/grid control, direct marketing/control room – depending on the project setup)
When is detailed design for PV and BESS with greentech beneficial?
When you move from permitting / preliminary design into implementation
As soon as the plant concept is defined and the permitting situation has been clarified, detailed design is required to technically specify the design and make it usable for procurement, construction and commissioning – without breaks between “concept” and implementation.
When DC and AC detailed design should fit together seamlessly
When you want to technically safeguard tendering and procurement
With a fully specified detailed design, bills of quantities become more robust, bids more comparable, and technical change orders during construction are more likely to be avoided.
When you have high requirements for clean documentation and handover
We structure the destailed design documents clearly and with version control, so EPCs and project stakeholders can work with it directly – through construction and commissioning.
When you want to reduce risks before construction starts
Clean detailed design documents avoid typical project bottlenecks such as conflicting plan versions, unclear interfaces or late technical changes.
When you need an independent review of third-party design (Owner’s Engineer)
Detailed design: complete or in sub-packages
We offer our detailed design for PV, wind and BESS as a complete package – and, if required, also in individual sub-packages. This is beneficial if you cannot cover certain services in-house or wish to implement an EPC-light concept. Even for partial scopes, we ensure clean interfaces and a consistent data set so that DC, AC and SCADA/IT fit together precisely during implementation.
Our Approach
We guide you through the process in a structured manner: from the initial assessment to receiving your standards-compliant, requirements-compliant, implementable detailed design documentation.
Project setup & input check
We review the existing design status and clarify objectives, boundary conditions and responsibilities. This ensures that all parties work with the same assumptions and data.
Define interfaces & scope
Develop detailed design (DC/AC incl. SCADA/IT interfaces)
Plausibility check & quality assurance
Handover & Q&A with EPC/project team
6 good reasons for detailed design with greentech
Integrated DC/AC perspective instead of interface gaps
Implementation-ready design for EPC, procurement and site
We deliver detailed design so it can be used directly for procurement, installation and commissioning – not as a “concept”, but as a handover basis.
Interfaces clearly defined—including to plant control
Quality assurance through the four-eyes principle
Practical know-how from construction and operations—considered in the design
If desired, we support you beyond the design phase
FAQ: Detailed design
Frequently asked questions about detailed design for PV, wind and BESS
What is the difference between preliminary design and detailed design?
When is the right time for detailed design?
As soon as the plant concept is defined and the required building permit is in place or the permitting situation has been clarified and the project moves into tendering, procurement and construction preparation.
What does the customer receive at the end of the detailed design?
Does the offer apply equally to PV, wind, BESS and co-location projects?
Yes. We prepare detailed DC and AC designs for PV and wind as well as for BESS projects (standalone or co-location) and consider the respective interfaces.
Is SCADA/IT part of the detailed design?
We consider the relevant SCADA/IT interfaces as an integral part of the detailed design, ensuring plant control and the network environment are prepared cleanly and securely. If we develop a SCADA & IT concept, we also take care of implementation.
Can the customer commission only individual partial services from greentech?
Yes. You can commission the detailed design as a complete package or as partial services – for example, DC or AC design only.
How does greentech ensure quality and consistency?
Does greentech also provide support after the detailed design?
We also support you during awarding and construction – for example with technical EPC tendering or independent construction supervision.
Do you also review detailed designs prepared by third parties?
Still have questions?
Can’t find the answer you’re looking for? Please get in touch with our team of experts
Engineering & Technical Advisory
Here you can download an overview of our Engineering & Technical Advisory services:
Why work with greentech?
Years of experience
Employees active in 6 European countries
Projects in the development pipeline
Ground-mounted PV systems built
in technical consulting
in operational management
Your specialists for detailed design at greentech
Viola Hoffmann
Commercial Head of Engineering
Johannes Liebich
Head of Engineering & Technical Advisory
Joern Carstensen
Chief Technical Officer (CTO)
In his role, Jörn Carstensen combines the management of all technical areas of the greentech group. As CTO, he is responsible for plant construction, engineering services and technical management. The aim is to create uniform standards and processes across all technical areas at greentech, thereby ensuring company-wide synergies, high quality and the greatest possible transparency.
Jörn Carstensen joined greentech in 2014 as Business Development Manager. In addition to developing various European markets, he built up the Engineering and Technical Advisory division. From 2006 to 2014, he worked for the Conergy Group in various international corporate and business development positions. Prior to that, he worked for a consulting unit of Accenture and supported utility companies in strategic and organisational issues. Jörn Carstensen holds a degree in Industrial Engineering with a specialisation in Energy and Environmental Management from the Universities of Flensburg and Southampton.
Contact
Only 45 seconds for your request