EPC

ENGINEERING, PROCUREMENT & CONSTRUCTION

juwi Inc. leverages its unique expertise and experience to design high-performance, large-scale solar facilities, providing the lowest cost of energy while maximizing project investor returns. Our top notch engineering, procurement, and construction teams work closely with suppliers to develop and provide high quality components. Through juwi Inc.’s demonstrated in-house capabilities, including licensed civil, electrical and structural professional engineers, an engineering optimization team, and experienced legal, permitting, and construction management staff resources, juwi Inc. is capable of providing full-scope project planning, design, procurement, and installation expertise above and beyond that of the typical developer or EPC scope of work.

Engineering
Professional Engineers on Staff

Engineering is core to juwi Inc.’s business. juwi Inc. has on staff more than 12 skilled design, civil, mechanical, structural, and electrical engineers with key members holding civil, structural, Mechanical, and electrical Professional Engineer licenses in more than 32 states.

Value Engineering

Value engineering represents a core element of juwi Inc.’s mission, which is supported by juwi AG’s long history of whole system design and value engineering practices. Since the inception of the juwi AG’s solar group in Germany, the company has driven the average cost of its system offerings down by more than 60% by rigorously applying the following principles to its projects:

Procurement

juwi Inc. takes a proactive approach to procurement by utilizing an extensive vetting and qualification process.   As part of the process, we perform detailed plant audits, review company financial data, warranty claims, pre-shipment inspection and quality assurance. Furthermore, juwi has deployed several pilot projects and operates a local test facility in Boulder to test a potential suppliers’ equipment prior to deployment on large projects. For example, juwi Inc. continuously evaluates module performance, including ongoing field performance of a number of different module manufacturers, including several thin-film technologies as well as most Tier I crystalline modules. juwi Inc. is also evaluating the performance of various racking providers, including both fixed-tilt and tracking configurations. Worldwide, juwi AG has tested close to one hundred products in over 10 MW of test facilities. Use of actual operating data as part of the selection process benefits juwi Inc. customers in the form of improved standards of equipment procurement, providing them with reliable solar facilities whose operations meet or exceed industry standards.

Construction

Having installed more than 1.6 GW of solar PV capacity worldwide, the juwi organization has developed a system of design and installation best practices, resulting in optimized construction methods and techniques applicable to projects in a wide variety of regions and terrains.

Construction Management
  • juwi Inc. utilizes highly qualified site personnel that work closely with the owner, project management, and the subcontractor to provide the highest quality installation.
  • Highly integrated development, planning and construction systems: juwi Inc. employs a highly integrated planning and construction system that generates detailed project plans prior to the start of construction, thereby reducing the amount of (expensive) time spent at the construction site.
  • Efficient solar equipment field assembly (as opposed to field construction): juwi Inc. arranges for pre-fabrication of its solar energy generation facilities and equipment to the maximum extent possible prior to arrival in the field, thereby streamlining the on-site activities to system assembly rather than construction of the system from scratch.
  • Continual re-assessment targeting improved integration of systems: juwi Inc. continually analyzes and optimizes the systems that it builds, thereby yielding improvements and efficiencies that address project issues spanning the development spectrum—from streamlining the project’s layout and construction flow to optimizing the number of screws to be installed in the racking system.

Project Management
  • juwi Inc. has developed a project management and reporting structure for its projects that provides all levels of juwi Inc. management, project personnel and juwi Inc. utility partners with direct and clear lines of communication. This structure enables juwi Inc.’s projects to move smoothly through the development of the Project into the well planned and staged construction phase, where juwi Inc. works with on-site representatives to bring the Project to commercial operation on or ahead of schedule.
  • juwi Inc. has well developed and vetted quality management procedures for all aspects of the juwi Inc. EPC business. The juwi Inc. design, engineering, procurement and construction quality processes are in place to ensure that all juwi Inc. projects are designed and built in a manner that is consistent with the project documentation, industry standards and customer expectations.
  • Weekly Action Item List (“AIL”) meetings are held for all projects during the development and construction phases. These meetings ensure that all members of the project teams are up to speed on the progress of the project, to ensure that they are maintaining the rigorous standards juwi Inc. applies to all facets of its development and construction activities, and that customer and industry standards and deadlines are being met, if not exceeded. juwi Inc. projects are executed according to the forethought, design, decisions and efforts of the project team, all of which are approved by the project owner, which results in construction work being completed according to the project documentation.

Quality Control
  • Quality control is critical to juwi Inc.’s operations. The wide scope of experience gained through countless projects has resulted in the creation and review of procedures and templates for all juwi Inc. EPC procedures manuals. Compliance with the procedures ensures that juwi Inc. projects meet or exceed industry standards and results in a reliable solar photovoltaic energy generation facility. The documentation that results from the quality plans is directly incorporated into the project turnover package, which is provided to the project owner and maintained by juwi Inc. as a record of the project. Often, juwi Inc. is tasked with the operations and maintenance of the project and these quality documents serve as valuable reference resources.
  • Upon contracting with an entity, juwi Inc. will create an internal project team that work together for the duration of the project. The project team will be composed of engineers (systems, civil, structural, electrical and SCADA), a project planner, legal representation, procurement and logistics specialists, an accountant, a site manager, a project manager and a member of juwi Inc. senior management. The project team will meet weekly to discuss all of the open items from the previous week’s meeting and all of the major forthcoming activities.
  • Prior to mobilization, juwi Inc. engineers, planners, construction site team members, and the project manager work together to create a customized Quality Control Plan for the Project. This Quality Control Plan is adapted from juwi Inc.’s general Quality Control platform. All relevant subcontractors will have access to the Quality Control Plan so that each party is aware of the required standards for installation.
  • juwi Inc.’s QA/QC program is designed to monitor the installation progress throughout the construction phase in order to identify and remedy any installation issues in real time should they occur. As construction activities are completed, that work is reviewed and measured against the quality plan using juwi Inc.’s various QA /QC forms and checklists in order to identify and document any issues of non-conformance. If issues are identified, juwi Inc. will work with subcontractors to immediately identify the cause of the problem, determine an approach to remedy the problem, and monitor the progress after a solution has been reached. By maintaining an on-site presence at all times and performing QA/QC review concurrent with the construction phase, juwi Inc. takes a prudent approach to construction management that allows for early identification of workmanship issues at a time when they are more manageable to correct and prevents such issues from occurring on a larger scale throughout the project. Compliance with these QA/QC procedures ensures that juwi Inc. projects meet or exceed industry standards and results in long term reliable operations.

Electrical Testing
  • juwi Inc.’s Electrical Testing QA/QC check can occur in parallel with the Construction QA/QC check noted above, but in all cases Electrical Testing must be performed with satisfactory results prior to commencing the subsequent Start Up and Verification checks. The Electrical Testing Plan consists of the following electrical tests: continuity checks, megger testing, rotation checks, hi-pot testing, string testing and relay functional testing.

Start-Up and Commissioning
  • The Start-Up procedures describe the work and safety steps involved in taking a solar plant (or portion thereof) from fully reviewed and tested (i.e. all Electrical Testing and Construction QA/QC is complete on the portion undergoing Start-Up) to operational. Portions of the installed capacity can be started up in complete inverter or power station blocks. Note that one of the primary steps in the Start-Up plan is to review the documentation from the Electrical Testing to be sure that advancing to the Start-Up work is safe and appropriate.
  • The Verification plan covers the commissioning and performance review of the plant in general and several of the subsystems. These steps include validating measurements (e.g. RCB string current measurements and module temperatures), verifying that measured data is logging appropriately in the SCADA system, and thermal imagery.