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Comprehensive Certificate for a Tess Engineering Co. Photovoltaic Power Plant

In order to ensure stable operation of a one-megawatt photovoltaic plant in Tokushima Prefecture, Tess Engineering Co., Ltd. selected TÜV Rheinland Japan to provide third-party comprehensive certification services. TÜV Rheinland experts monitored the entire construction process of the plant, from planning, site evaluation and installation up to commencement of operations. This project marks the first independent, comprehensive certification of a photovoltaic power plant in Japan.

Basic Facts
Client: Tess Engineering Co., Ltd
Timeframe:12.2013 – 06.2014
Project Location: Tokushima Prefecture, Japan
Main services:- Evaluation of the entire process of a photovoltaic power plant

- Site evaluation

- Installation

- Commencement of operations
Involved regulations/ standards:- International Standard IEC 62446

- JIS and JEMA regulations for Japanese market

Initial situation and requirements

This is the first time in Japan that a third-party certification company comprehensively evaluated the entire process of a photovoltaic power plant, including involvement in the project from the planning stage, site evaluation, installation, and up to commencement of operations.

Solutions, results

  • Evaluation of operation and long-term reliability of investment required for Photovoltaic Power Plants.
  • Certification of photovoltaic power plant with 1 megawatt output.

1. Technical evaluation from a neutral and independent position is performed at every stage:

  • stage 1: planning and installation,
  • stage 2: from installation to operation,
  • stage 3: throughout plant operation.

2. A highly accurate energy yield prediction is conducted, including an on-site shadowing analysis. Further the project specification is investigated towards completeness and correctness.

3. Before the photovoltaic modules - PV are installed on-site, output measurement is performed at TÜV Rheinland Japan's photovoltaic laboratory to ensure the performance.

4. After mechanical completion, a comprehensive on-site inspection with full testing ensures the quality and safety of the plant construction.

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Benefits for the client

By acquiring a comprehensive certification for photovoltaic power plants, plant operators, financial institutions, insurance companies and investors can expect following advantages:

  • Power plant operators: Minimized safety risks from a technical standpoint
  • Financial institutions and investors: Improved bankability and ROI