Following Tesla’s recent exit from the solar roof market, industry players are reevaluating the future prospects and strategies of solar roof tiles. Tesla’s removal of solar roofs from its offerings in August, resulting from unsatisfactory sales and legal disputes over unexpected price increases, has sent ripples through the sector, with some seeing it as an opportunity for growth and diversification.
Alternative Prospects and Challenges
Despite the setbacks, companies like the Swiss firm Freesuns consider branching into the US market, spurred by a 20-30% sales increase since their 2019 inception. Deborah Learoyd, CEO and managing director of Freesuns, notes that although costs for solar roofs are decreasing, individualised engineering and installation remain costly due to the uniqueness of each project. Additionally, stricter building regulations mean that collaborating with roofers, solar installers, and electricians can be complex and time-consuming.
The Practical Hurdles
Kate Collardson from Solar Service of Colorado highlights the challenges in maintaining solar shingle systems. The absence of electronics under the shingles complicates pinpointing issues, unlike traditional panels which provide straightforward diagnostics. Repairs necessitate careful handling to avoid damage, exacerbating costs and effort for shingle repairs. Additionally, solar roofs generally cost twice as much as standard solar panel systems before considering repair costs. They also suffer from higher inefficiency due to factors such as decreased airflow and energy loss from emerging heat.
Innovative Solutions on the Horizon
Advancements like matrix shingling technology promise improvements. This approach arranges solar cells in overlapping layers, using electrically conductive adhesives instead of metal wires, allowing power to circumvent shaded sections and enhancing visual appeal. Martin Heinrich from the Fraunhofer Institute in Germany believes this innovation could transform the market by optimising energy output and adaptability to various roof dimensions.
Freesuns, a forerunner in adopting this technology, foresees it revolutionising the future of building-integrated photovoltaics, as noted by Learoyd. Enhanced automated design software could further reduce costs and increase confidence within the construction industry. Learoyd remains optimistic about the long-term prospects of solar-integrated roofing, believing it will eventually become a standard feature for those able to afford it.
Reporting based on coverage first published by bbc.co.uk.