Sustainability

Scientists at Princeton have found solar and wind energy offer the added environmental benefit of reducing water usage, by comparison with hydroelectric dams. Their findings, say the researchers, could have a positive impact on groundwater sustainability in drought-prone regions such as California, where they conducted a case study.

The European Solar Manufacturing Council says a decision by policymakers to disregard the carbon footprint of imported solar products ‘makes absolutely no sense’. Talk of ‘jobs which require a rather low qualification’, meanwhile, is unlikely to heal the widening rift with solar project developers and panel installers.

Opinion is divided over the urgency of addressing the issue. While some developers feel the 25-year lifetime of modules offers plenty of time to prepare an action plan, other industry voices claim Indian-made products don’t last half that long and one recent report pointed out waste is already piling up thanks to defects and faulty installation.

The recycling market will experience a tenfold expansion between last year and 2030, driven by EV battery usage and portable electronics. Retrieving valuable metals and minerals is becoming a high priority and several dozen companies are already in position for the first big wave of end-of-life batteries.

Lead plays an important role in crystalline silicon module manufacturing when it comes to cell interconnection. But even in small amounts, the presence of this toxic material in a PV module could be viewed as a black mark against the industry’s sustainable credentials. Alternatives are available, but it seems the price is not yet right for broader uptake.

Although PV trails wind and nuclear in terms of its anticipated future footprint, the opposition party’s attempt to outflank left of center rivals on climate change has resulted in one of the world’s most ambitious national roadmaps towards a zero-carbon future.

Analyst WoodMac has spelled out the urgent need to decarbonize the global hydrogen production industry. While the fuel can offer a sustainable grid balancing act for intermittent renewables, in its current fossil-fuel driven form it is pumping out more than 800 megatons of carbon into the atmosphere every year.

In the past 12 years, green bonds have raised nearly $800 billion for investment in clean energy and other sustainability projects and companies are now pegging bond interest payments to their environmental performance.

With sun the common component of solar energy production and agriculture, a new company in northern New South Wales is set to combine the benefits of sowing PV and forage crops in the same soil.

In the run up to our Greenwashing vs. verifiable sustainability webinar, the CEO of pv magazine’s UP initiative partner SMA Solar Technology, Jürgen Reinert, talks about what the inverter manufacturer is doing to prove its sustainability credentials.