Rubber stamping bankability

By Sara ver Bruggen

Certifying the quality and performance of an entire PV array has been a notable development in the past two years. Sara ver Bruggen looks at the extent to which developers, investors and insurers are turning to plant-level certification to guarantee the design, construction quality and performance of a PV system.

One-track mind

By Danielle Ola, Solar Media

In a relatively short space of time, single-axis trackers have become the mounting technology of choice in utility-scale PV plants. Danielle Ola reports on the technological and economic drivers that have fuelled their meteoric rise and look set to ensure continued growth around the world for some time to come.

Shortcomings and developments in PV forecasting

By Jan Remund, Meteotest

Accurate forecasting is becoming increasingly important as PV penetration grows. Jan Remund of Meteotest looks at some of the recent developments in forecasting science and the work going on to improve this vital aspect of solar’s interaction with the grid.

Pyranometers versus reference cells for solar monitoring

By Peter N. Johnson, AWS Truepower

As the solar industry gains momentum, there is an increasing need for on-site resource monitoring using pyranometers and reference cells. Peter N. Johnson of AWS Truepower introduces the technical specifications and limitations of industry-standard pyranometers and reference cells, and outlines best practices for monitoring with this equipment. How solar measurements can be used to improve resource and energy estimates for utility-scale PV projects is also discussed.

Just-in-time deliver of PV power plants

By Maren Orgus, Hanwha Q CELLS; Mauro di Fiore, Hanwha Q CELLS

Meeting the exact delivery schedule of large-scale power plants is crucial for fulfilling customer expectations and contract specifications. Mauoro di Fiore and Maren Orgus of Hanwha Q CELLS discuss how to overcome specific local challenges to deliver large-scale power plants on time and on budget.

Future developments in BIPV and energy effiency in the fiht against climate change

By Dr. Silke Krawietz, CEO and Scientific Director, SETA Network

BIPV | Building-integrated PV has yet to live up to its promise, remaining a niche sector of the solar industry. However, as Silke Krawietz writes, European and international climate and energy goals, and a chance of reviving the European PV manufacturing industry, all offer BIPV the opportunity of becoming a mainstream technology.

Top of the world

By Andy Colthorpe, Reporter

Commercial rooftops | Innovations in commercial rooftop PV mounting systems are offering new possibilities for installers as they seek to drive down costs. Andy Colthorpe looks at some of the key developments that are helping breathe life into a segment that has so far been slow to take off.

Motivation for single axis solar trackers versus fixed tilt

By Matt Kisber, President & CEO, Silicon Ranch Corporation

Trackers | The economic argument for trackers is increasingly compelling. Matt Kisber, president and CEO of Silicon Ranch Corporation explains why the technology’s use is increasing and examines the benefits of opting for single axis tracking systems.

The art and science of pyranometers

By Ben Willis, Head of Content

Irradiance measurement | Pyranometers play a crucial role in gathering irradiance data for PV yield and performance modelling. Ben Willis explores this sometimes-overlooked piece of technology and efforts by researchers to improve our understanding of its characteristics.

PlantPredict: Utility-scale PV modelling software for solar project life-cycle assessment

By Bodo Littmann, Manager of Prediction Technology at First Solar

Modelling | First Solar has developed an energy assessment software platform that models the electrical generation of utility-scale PV power plants. This software, called PlantPredict, is an enterprise application that streamlines and fulfils many energy simulation needs throughout the project development life cycle, from the site prospecting, through design and optimisation, and contractual commitments, to power plant monitoring. Bodo Littmann and Alex Panchula of First Solar discuss some unique models required for characterising CdTe power plant performance, and outline the PlantPredict tool’s use throughout the project development phases, with the goal of ultimately lowering the total cost of ownership of PV power plants.

A model approach

By Ben Willis

Evidence is emerging that data used in PV yield modelling, an essential element in optimising a plant’s design and profitability, is leading to erroneous results. Ben Willis reports on the solar industry’s data challenge and how it is responding.

Signed, sealed, delivered

By Sara Ver-Bruggen

As PV expands its global footprint, logistics – transporting goods from factory to project site – is becoming a complicated challenge for manufacturers. Sara Ver Bruggen reports on efforts by the industry to reduce costs arising from equipment damaged in transit.

Large-area solar irradiance mapping

By Dazhi Young; André Nobre; Rupesh Baker; Thomas Reindl

As PV systems proliferate it is increasingly important to forecast their energy output in order to ensure a safe and reliable integration of their variable output into electric power grids. Dazhi young, André Nobre, Rupesh Baker and Thomas Reindl of SERIS outline a technique for generating large-scale 2D irradiance using data from pyranometers and plane of array cells.

Fundamentals of the commissioning of large-scale PV power plants

By Jorge Coello; Leonardo Perez

Large-scale PV contractors must perform tests to verify the correct operation of a new installation. Jorge Coello and Leonardo Perez outline the minimum aspects to consider for the commissioning of large-scale PV plants using a methodology that has been successfully implemented in the commissioning of more than 40 PV facilities worldwide.