CALL OUR EXPERTS FOR A COMPLETE, EFFICIENT AND RELIABLE YIELD ASSESSMENT
In an increasingly competitive market, risk management is a major issue for investors. Therefore, based on its operating experience feedback, 8.2 France offers a wide range of services, aiming to assess wind and photovoltaic potential over the long term.
Production study reviews can be carried out as part of Due Diligence Techniques.
![yield assessment onshore offshore wind](https://www.8p2.fr/wp-content/uploads/2020/05/LOGOS.png)
Lidar/SOdar validation
Ensuring optimal study conditions
- 8.2 France can validate your RSD (Remote Sensing Devices: LiDAR or SoDAR) from a measuring mast conforming to the CEI standard.
The purpose of this calculation is to check the performance of the RSD by comparing it to a measurement mast which will be used as a reference wind measurement
Methodology:
Preliminary checks concerning the site orography, the obstacles, the reports as well as the photos of the installation of the measurement mast and the SRD
![yield assessment solar, onshore and offshore wind](https://www.8p2.fr/wp-content/uploads/2020/05/logos-éolien-et-photovoltaique.png)
MONITORING MEASUREMENT CAMPAIGNS
Ensuring optimal study conditions
Throughout the duration of your measurement campaign, 8.2 ensures the availability and validity of the measured data to provide a yield assessment tracking.
If the event of an anomaly is detected, we will alert you quickly.
Typically:
Edite a monthly report
![8.2 France yield assessment solar, onshore and offshore wind](https://www.8p2.fr/wp-content/uploads/2020/05/logos-éolien-et-photovoltaique.png)
PRE-ESTIMATE OF THE PRODUCIBLE
A quick and independent estimate of production
A prior assessment gives promoters a good idea of the park’s production capacity.
Methodology
![yield assessment solar, onshore and offshore wind](https://www.8p2.fr/wp-content/uploads/2020/05/logos-éolien-et-photovoltaique.png)
PRODUCIBLE STUDIES
Thanks to a preliminary analysis of the wind farm project, our experts are able to help developers to optimize the ratio “investment in the measurement campaign / uncertainty on the yield assessment” by proposing the best measurement strategy.
ONSHORE WIND
Methods suitable for onshore wind power:
* Statistical analysis of various long-term data sources to detect extreme weather events.
* Estimated wind potential using a CFD method.
* Determination of the net P50 taking into account losses (ex: losses from the wake effect, management plans, other losses).
* Assessment of all wind speed uncertainties in production uncertainties using the sensitivity factor to obtain the P90.
OFFSHORE WIND
A methodology adapted to OFFSHORE:
• Calibration of roughness maps according to the classification of wind on water
• CFD and time series simulation to monitor unsuitable Weibull distribution related to land and sea breeze combinations
• Different models possible for simulating wake effects:
✓ Adaptation of existing models (PARK via Wake Decay Constant)
✓ Addition of a roughness layer (Deep Array models)
✓ Actuator disc simulation
• Calculation of uncertainties with the Monte Carlo method to manage risk
Extra strength: we are familiar with Lidar campaigns
PHOTOVOLTAIC
Our expertise is also with solar power:
• Site visit: verification of site characteristics
• Taking into account satellite databases: selection of a data source according to its suitability for the site
• Calculation of energy distribution throughout the year by computer simulation (energy production, capacity factor, performance report)
• Analysis of the temperature of the photovoltaic modules
• Detailed calculation of production losses (dirt, IAM factor, PV conversion, irradiance level, temperature, shading, module quality, induced degradation light, discrepancy in the module network, wiring, inverter, auxiliaries, unavailability, …)
![yield assessment solar, onshore offshore wind](https://www.8p2.fr/wp-content/uploads/2020/05/logos-éolien-et-photovoltaique.png)
PRODUCIBLE STUDY REVIEW
An estimate of the real wind potential of a wind farm in operation
Review of existing energy performance assessments:
- Evaluation of the quality of the data measured on site and of the reference data,
- Qualitative examination of measuring instruments,
- General evaluation of the methodology applied and its compliance with the state of the art,
- Estimation of the validity of the correlation with the long-term reference data,
- Evaluation of the characteristics of the wind turbine used (power curve …),
- Qualitative evaluation of the terrain and wake modeling,
- Assessment of the air density estimate and how it was used in the calculations
- Examination of systematic losses applied,
- Assessment of uncertainty calculations, P50 and P90,
- Review of reduction assumptions
- …
OUR REFERENCES
KEY FIGURES FOR 8.2 FRANCE
426 MW
bankable energy efficiency assessments since 2008
685 MW
revisions to energy performance assessments since 2008
They trust us
![yield assessment clients](https://www.8p2.fr/wp-content/uploads/2020/05/Screenshot-2020-05-29-at-11.16.43.png)
![yield assessment clients](https://www.8p2.fr/wp-content/uploads/2020/05/Screenshot-2020-05-29-at-11.21.00.png)
![Clients 8.2 France](https://www.8p2.fr/wp-content/uploads/2020/05/Screenshot-2020-05-29-at-11.22.53.png)
![yield assessment clients](https://www.8p2.fr/wp-content/uploads/2020/05/Screenshot-2020-05-29-at-11.23.06.png)