PV systems with lowest LCOE using bifacial modules: State-ofthe- art systems and components

By Dr. Hartmut Nussbaumer; Dr. Markus Klenk; Dr. Radovan Kopecek; Dr. Joris Libal

Bifacial technology is proving to be an effective means of reducing the levelised energy costs of PV systems, offering substantially improved energy yield for only a minor additional cost. Hartmut Nussbaumer, Markus Klenk, Joris Libal and Radovan Kopecek report on the state-of-the-art in bifacial PV systems, giving an overview of components such as modules, sub-constructions, tracking systems and inverters, and presenting comparative simulation and measurement results from bifacial and monofacial systems.

The 2019 briefing

By John Parnell, Solar Media LTD

After weathering some major upheavals in 2018, the global solar industry looks in decent shape to take on the year ahead. Our team of reporters scope out the big themes for 2019, exploring the technology and market trends that will set the agenda over the next 12 months and beyond.

Is California dreaming? Energy storage’s role in reaching 100% renewables

By Andy Colthorpe

This year’s Solar Power International trade show dedicated what seemed like almost as much space to energy storage as solar. As Andy Colthorpe reports, this is likely a strong indication of the way the world is adopting renewable energy, particularly California, where storage looks set to play a key role in helping the Golden State realise its green ambitions

Accelerating to 100%

By Andy Colthorpe

Andy Colthorpe speaks to Janice Lin of the California Energy Storage Alliance on what sort of role energy storage will play in reaching the ‘100% carbon-free retail electricity’ goal of the state’s SB100 legislation

The smarts inside the storage

By Enrico Ladendorf; Bryce Evans

Energy storage projects often fail to deliver value because of economic miscalculations. These computational issues, however, can now be mitigated by applying software, analytics and machine learning, write Enrico Ladendorf and Bryce Evans

Short-term solar forecasting for utility solar sites: core business or distraction?

By Dr. Nick Engerer

Solar farm operators are coming under growing pressure to help maintain network stability by providing accurate generation forecasts. As Dr. Nick Engerer (CTO of Solcast) writes, innovations in short-term solar forecasting are providing operators with new options for making this task less of a distraction from their core business.

Evolution of pre-cracked PV modules

By Dr.-Ing. Claudia Buerhop; Dr. Christian Camus; Christoph J. Brabec; Thilo Winkler; Dr. Jens A. Hauch

Cell cracks have been identified as a major cause of defects in PV modules, but their effect on performance is less well understood. Researchers Claudia Buerhop-Lutz, Thilo Winkler, Jens Hauch, Christian Camus and Christoph J. Brabec describe the results of ongoing investigations into how the electrical power of PV modules is impacted by cracking

Advances in self-cleaning PV module technologies – a review

By Elisabeth Klimm; Karl-Anders Weiß

Technologies purporting to alleviate performance losses in PV modules due to soiling from dust and other airborne particles are becoming more widely available. But do they work? Elisabeth Klimm and Karl-Anders Weiß of Fraunhofer ISE investigate

Project briefing: Building Benban: Inside Egypt’s 1.6GW Solar Park

By Ben Willis

Amid reports of logistical and bureaucratic difficulties, Germany’s IB Vogt earlier this year became the first company to complete and energise one of the multiple projects that will eventually make up Benban, Egypt’s gargantuan solar park in the western desert governorate of Aswan.

Analysis of bifacial PV systems in the Middle East

By Dr. Chen Zhu; Dr. Songming Liu; Zhichao Wang; Dr. Qiangzhong ZHU; Dr. Jun Lv

PV systems incorporating bifacial modules require careful design and integration to maximise the additional yield they offer. Drawing on extensive field studies, researchers from LONGi Solar describe the optimum design of bifacial systems in the desert conditions of the Middle East, to which bifacial technology is especially well suited

Hurdles to widespread bifacial PV adoption

By Jenya Meydbray

Bifacial technology is seen by many as the shape of things to come for the solar industry. But how is it regarded by those on the frontline of choosing equipment that will result in the most profitable projects? Jenya Meydbray, VP of solar technology at Cypress Creek Renewables, offers an insider’s view

A case for accuracy: Pyranometer or satellite irradiance data?

By Mauricio Richter; Clive Lee

Accurate irradiance data is key for assessing the feasibility, profitability, and performance of solar energy assets. 3E and Kipp & Zonen investigate the benefits of combining pyranometer and satellite-based irradiance data for optimal planning and operation of PV plants

Game changers: the rise and rise of 1,500V technology

By Patrick Fetzer

Two years ago, 1,500 volt PV systems were predicted to become the industry standard in the utility-scale segment. Patrick Fetzer of 1,500V pioneer GE looks at how far the technology has come and what further innovations could lie around the corner

Crunching the numbers on floating solar

By Sara Verbruggen

A major new study published by the World Bank has underlined the scale of the opportunity represented by floating solar systems, but highlighted issues of cost, bankability and regulation still facing this emerging branch of the solar industry. Sara Verbruggen reports on the first serious piece of heavyweight analysis of the prospects for floating solar

Renewables 2.0: Opportunities in renewables in a post-subsidy world

By Duncan Ritchie; Dr. Kornelia Stycz

Substantial flows of investment into renewables have brought about significant reductions in the cost of delivered energy, while simultaneously increasing the penetration of renewables in most markets. These developments herald the rise of Renewables ‘2.0’, a post-subsidy world for investment in renewable energy. Duncan Ritchie and Kornelia Stycz of Apricum explore the opportunities in corporate PPAs and hybrid renewable energy systems in the context of the Renewables 2.0 energy transition