Requires Subscription: Photovoltaics International Archive

Pre-construction, engineering and design costs of large-scale residential installations - part 1

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email

By Angiolo Laviziano, CEO, REC Solar; Ethan Miller, Vice President of Construction Engineering and Design, REC Solar

PV industry module and component manufacturers have brought down costs significantly over the last four years. This trend is clearly evident as most publicly traded companies continue to grow revenue despite falling module and component prices. However, it is far less clear how downstream system integrators are handling the drop in system prices and contributing to value creation. System prices are generally higher in the U.S. than in Europe, despite lower module prices in the U.S. This disparity often raises questions on the part of European PV professionals where these costs come from, and secondly, what have U.S. system integrators done to reduce costs. This two-part series will shed light on how U.S. system integrators have undertaken tremendous efforts to decrease cost and add value through innovation by focussing on labour-intensive value creation in the downstream segment. Part I will focus on the residential market segment by delving into activity cost savings through innovation in engineering and construction, while Part II will illustrate how changes in sales, rebates, interconnection, and the supply-chain management over the last five years have reduced costs.

L3dwLWNvbnRlbnQvdXBsb2Fkcy9sZWdhY3ktcHVibGljYXRpb24tcGRmcy8wZWZlMjA0NjYzLXByZWNvbnN0cnVjdGlvbi1lbmdpbmVlcmluZy1hbmQtZGVzaWduLWNvc3RzLW9mLWxhcmdlc2NhbGUtcmVzaWRlbnRpYWwtaW5zdGFsbGF0aW9ucy1wYXJ0LTEucGRm

Published In

Photovoltaics International Archive
The ninth edition of Photovoltaics International was published in August 2010. It features Fraunhofer IISB looking at advanced process control techniques in Cell Processing, NREL gives an atmospheric thin-film deposition technique overview, and in Power Generation REC looks at reducing BOS costs with new technology and economies of scale.

Read Next

Photovoltaics International Archive
Photovoltaics International Papers, Thin Film
Two-terminal tandem solar cells based on perovskite/silicon (PK/ Si) technology represent one of the most exciting pathways towards pushing solar cell efficiencies beyond the thermodynamic limit of single-junction crystalline silicon devices. While laboratory efficiencies of these tandem cells have risen to very impressive levels, many important innovations towards enabling their eventual manufacturability have also been made in this rapidly evolving field. In this paper, a number of these processing innovations are highlighted in order to give a more complete view as to the viability of scaling up the processing of these devices. Specifically, the focus is placed on how today’s crystalline silicon process flows could be adapted in order to allow existing cell lines to produce PK/Si cells.
Photovoltaics International Archive
Photovoltaics International Papers, PV Modules
This paper presents a way to evaluate production windows and related field issues using an adapted failure mode and effects analysis (FMEA) approach. Since PV modules are the most important component in terms of longevity and warranties, the focus of Fraunhofer’s work has been on module manufacturing. The process, however, can also be applied to cell manufacturing and other steps in the value chain.
Photovoltaics International Archive
Photovoltaics International Papers, PV Modules
Low-temperature interconnection processes for high-efficiency PV cells will be a key R&D topic in the coming years. In reality, to avoid significant deterioration of the surface passivation, the metallization and interconnection processes of silicon heterojunction (SHJ) cells are limited to temperatures below 200°C; tandem cells with a perovskite subcell demand an even greater reduction in process temperature, namely below 130°C. Moreover, to ensure the sustainability of PV production on a TW scale, the use of scarce materials, especially silver, needs to be reduced, as 10% of the world’s supply was already dedicated to PV in 2020. This paper addresses the results obtained in terms of reducing the silver consumption in interconnection technology based on electrical conductive adhesive (ECA) and Pb-free ribbons.
Photovoltaics International Archive
Photovoltaics International Papers, PV Modules
After several years of technological developments, measurement and quality standard specifications, and bifaciality implementations in energy yield simulation programs, bifacial PV has become reliable and will shortly become accepted as a valuable commodity. Since 2020, bifacial passivated emitter and rear cell (PERC) technology has been king of the energy markets, and, in combination with simple tracking systems (e.g. horizontal single-axis tracking – HSAT), the lowest electricity costs have been achieved. Because PERC is reaching its limit in terms of efficiency, and n-type technology is gaining momentum, in the future n-type PV (nPV) will replace PERC technology as the workhorse of the PV electricity market. This paper describes why, and most likely when, this will happen and which n-type technologies will be leading the pack in the race to bring electricity costs well below €0.01/kWh.
Photovoltaics International Archive
Cell Processing, Photovoltaics International Papers
As the PV industry rapidly advances towards annual PV production and installations on a terawatt scale, many aspects that are currently not critical will need to be considered. Among these, material availability is probably one of the most pressing ones. Established production routines will need to be changed, which may pose significant time constraints in the light of the fast-growing market. The focus of this paper will be on the use of silver for solar cell metallization. Past developments are discussed and an overview is given of the fast-growing number of relevant publications from the scientific community that deal with the problems associated with silver.
Photovoltaics International Archive
Cell Processing, Photovoltaics International Papers
This paper reviews the steps to making a breakthrough in TOPCon efficiency, from cell to PV module, by using industrially viable manufacturing processes. A detailed characterization and investigation of the primary losses of JinkoSolar’s TOPCon record cell of July 2020, with an efficiency of 24.8%, is presented.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
July 19, 2022
Free Webinar - 10am and 6pm BST
Upcoming Webinars
July 27, 2022
9am (UTC +2) / 3pm (UTC +8)
Solar Media Events
October 4, 2022
New York, USA