Discover our upstream and downstream technical journals

Digitising the solar revolution

Our ability to generate renewable energy is scaling up fast, and solutions to integrate that energy will rely on technologies like blockchain to help keep new solutions on track. Power Ledger’s executive chairman and co-founder, Dr Jemma Green, looks at the role blockchain plays within her company’s platform to integrate and automate solar energy trading and balancing.

Optimising DERs: Artificial intelligence and the modern grid

The optimal integration of distributed energy resources such as solar, battery storage and smart thermostats becomes an ever-more complex and pressing question. Rahul Kar, general manager and VP for New Energy at AutoGrid Systems looks at the role artificial intelligence can play in smarter energy networks.

Building battery storage systems to meet changing market requirements

Battery system integrators must navigate a broad array of technologies and varying market drivers when putting systems together. Andy Colthorpe speaks to Powin Energy and Sungrow about the engineering challenges involved in building lithium-ion battery storage systems at scale.

Understanding vanadium redox flow batteries

In the second of a two-part series for this journal, Jens Noack, Nataliya Roznyatovskaya, Chris Menictas and Maria Skyllas-Kazacos from CENELEST, a joint research venture between the Fraunhofer Institute for Chemical Technology and the University of New South Wales, examine the potential of vanadium redox flow batteries in the future energy system.

Price cannibalisation and future solar PV deployment

The growing volumes of variable solar and wind generation on the grid raise the risk of depressed wholesale prices, particularly at times of high generation and low demand. James Brabben of Cornwall Insight explores the phenomenon of so-called price cannibalisation and how its most serious potential impacts on the renewables industry can be avoided.

Post-subsidy solar: the reality on the ground

The era of subsidy-free solar is well underway in a growing number of markets, with Europe leading the way. As  Solarcentury’s Peer Piske explains, the greater sensitivities around modelling zero-subsidy projects mean new approaches to design and planning are required by developers.

Potential-induced degradation of bifacial PV modules incorporating PERC+ technology

Many of the bifacial modules now offered by PV manufacturers employ bifacial passivated emitter and rear cell (PERC+) technology, making them vulnerable to rear-side potential-induced degradation, in addition to the conventional front-side shunting type (PID-s). Kai Sporleder, Volker Naumann, Stephan Großer, Marko Turek and Christian Hagendorf of the Fraunhofer Centre for Silicon Photovoltaics report on new testing methods designed to quantify the expected power PID-related losses in bifacial PERC+ modules in the field.

Towards a test standard of light and elevated temperature-induced degradation

Understanding of LeTID remains incomplete, although its effects on PV power plant performance are recognised as being potentially significant. Tabea Luka, Friederike Kersten, Matthias Pander, Max Koentopp, Marko Turek, Werner Bergholz and Thomas Pernau of the LeTID Norm consortium outline progress towards developing a standardised test for the defect, a key step in minimising its impact.

How aerial inspections can improve O&M in a cost-effective manner

The use of unmanned aerial vehicles in solar operations and maintenance can reduce costs and save hours of painstaking labour, but only if applied correctly. Aline Kirsten Vidal de Oliveira, Mohammadreza Aghaei and Ricardo Rüther explore the optimal use of aerial inspections and emerging methods for analysing the data they gather to identify faults.