Over the last decade, investors and governments got used to two supportive trends: relatively cheap capital from low interest rates, and steadily falling costs. However, this changed as the world emerged from the Covid pandemic and into the global energy crisis. In a new era of high interest rates, the impressive growth in renewables deployment is under threat, explain Tim Gould, David Fischer, Paolo Frankl and Heymi Bahar at the IEA. Renewables … [Read more...]
Four net-zero opportunities for 2024: wind, solar, lab-grown meat, positive tipping points
Will de Freitas at The Conversation draws attention to four reasons to celebrate 2023 and their implications for our drive to tackle climate change. Most will be familiar with the continued progress made with wind and solar, though they deserve repeating given its immense significance. Wind turbines now stand more than a quarter of a kilometre high, and will get taller. At that size, one turn of the blade will power an average home in the … [Read more...]
The E-bike revolution is already underway (in developing countries): 280m micro-vehicles on the road and rising
While we’re all still waiting for the tipping point for EVs, it might have already happened for e-bikes – just not in rich countries. Car-owning nations will always struggle to switch to micro-mobility. But in China and other developing nations, owning a moped or bicycle is very common, so the switch is much easier, explain Muhammad Rizwan Azhar and Waqas Uzair at Edith Cowan University. It’s why, globally by 2022, there were over 280m electric … [Read more...]
China is still playing the long game with its ‘new three’: solar cells, lithium batteries, EVs
China’s “new three” – or xin san yang – are solar cells, lithium-ion batteries, and EVs. The term harks back to the concept of its “old three” that were once the pillars of its exports: clothing, home appliances and furniture. China’s success is seen in the numbers: it accounts globally for 80%+ of solar cell exports, 50%+ of lithium-ion batteries and 20%+ of EVs. You Xiaoying, writing for China Dialogue, interviews experts and quotes reports … [Read more...]
Modelling revenue potential for Germany’s Battery Storage future
In the last ten years Germany has installed battery storage systems totalling 6.5 GW of power and 10.1 GWh of energy. Storage is an essential part of every nation’s electrification plans: for peak shaving, uninterruptible power for industrial customers, use as a buffer, and self-supply in households. Elena Dahlem and Alex Schmitt at Energy Brainpool start with a summary of storage’s use in the household, industrial and large-scale sectors. They … [Read more...]
Clean energy is driving job growth, but skills shortages are a major barrier
The second edition of the IEA’s annual World Energy Employment report measures energy sector employment by region, fuel, technology, and value chain. Globally, energy employment rose to 67m people in 2022. Over half of employment growth since before the pandemic was in just five sectors: solar, wind, EVs, batteries, heat pumps, and critical minerals mining. In fact, clean energy jobs overtook fossil fuels in 2021. But skilled labour shortages are … [Read more...]
EU legislators must avoid crippling clean tech with a blanket ban on PFAS (per-and polyfluoroalkyl substances)
A blanket ban on all types of PFAS (per-and polyfluoroalkyl substances), or ‘forever chemicals’, is currently being considered by the European Chemicals Agency (ECHA). PFAS are used in cleaning products, non-stick pans, personal care products and more, so a ban on these will save lives and deliver sustainable practices. But, as Daniel Fraile at Hydrogen Europe explains, the PFAS subgroups of fluoropolymers and perfluoropolyethers are used in … [Read more...]
Make EV batteries bidirectional, get GWs of storage for the Grid
How to cope with the hourly, daily and seasonal variation in demand as regions electrify more, depend more on variable renewables like wind and solar, and cut baseload fossil generation? Storage shifts load nicely. But why build grid-scale batteries when millions of little batteries in our EVs are sitting idle in our driveways for most of the time? As Mark Specht at the Union of Concerned Scientists explains, it’s why in California a bill is … [Read more...]
IRENA’s Innovation Week 2023: Renewable solutions to decarbonise end-use sectors
At the end of September IRENA held a four-day event “Innovation Week 2023: Renewable solutions to decarbonise end-use sectors” in Bonn, Germany. A wide range of speakers discussed tangible solutions to decarbonise energy intensive sectors such as transportation, buildings and industry, informed by first-hand project experiences and supported by insights from IRENA’s in-depth analyses. Topics included direct and indirect electrification, green … [Read more...]
Scaling up global grid-scale Storage to 80GW/year (it was 16GW in 2022)
Globally, annual additions of grid-scale battery storage must rise to 80GW between now and 2030, explain Amit Jain, Gabriela Elizondo Azuela and Aakarshan Vaid at the World Bank, writing for WEF. In 2022 it was only 16GW. The biggest gap, perhaps understandably, is in developing countries. It’s in these regions where renewables auctions for deployment – primarily solar and wind – need to start including hybrid storage as part of the package. The … [Read more...]
Concrete supercapacitor: works like a battery, much cheaper, easy to make
Capacitors work like batteries. They store and discharge electricity. David Chandler at MIT explains how researchers there have designed a supercapacitor from concrete and carbon black, two cheap and common materials. The beauty of the idea is that they can be incorporated into building foundations, thus installing a battery virtually for free. A concrete capacitor cube 3.5m wide can store 10kwh, enough for a household. Similarly, concrete … [Read more...]
Rooftop Solar: will subsidies benefit wealthy early adopters, while grid limits lock out the latecomers?
Subsidies encouraging homeowners to install rooftop solar are being won by the affluent who can afford to be first movers. And when the technology has come down in price, the remaining majority of households will be shut out of the benefits of own-generation because the grid won’t have the capacity to integrate everyone. That’s the argument made by Juan Jose Cuenca Silva, Barry Hayes and Hannah Daly at the University College Cork who summarise … [Read more...]
Sodium-ion batteries ready for commercialisation: for grids, homes, even compact EVs
Sodium-ion (Na-ion) batteries, a much more abundant and cheaper alternative to the standard Lithium-ion, are on the verge of commercialisation, explain Carlos Ruiz, Martina Lyons, Isaac Elizondo Garcia and Zhaoyu Wu at IRENA. Though there’s enough Lithium in the world to support global electrification targets, tightening demand and supply chain constraints point at the urgent need for an alternative. The cost of a Na-ion battery cell is expected … [Read more...]
Circular Battery Economy: what policies and processes can accelerate recycling and reuse?
As battery production scales up so do the risks of the long global supply chain failing, or causing more emissions, damaging the environment, and breaching human rights. A circular battery economy should greatly reduce those risks. Yet the U.S. has no federal recycling mandates or requirements for lithium-ion batteries, and state policies are inconsistent. Marie McNamara at RMI maps out the five critical issues that must be dealt with. Before … [Read more...]
Draft EU rules on Battery lifecycle decarbonisation: close the loopholes!
Draft rules mean battery manufacturers selling into Europe will have to report the product’s entire carbon footprint, from mining to production to recycling, as early as July 2024. That data will then be used to set a maximum CO2 limit for batteries to apply from the end of 2027. This is a big step forward, says T&E, addressing concerns over battery carbon footprint and recycling, and it also covers environment and human rights. But T&E … [Read more...]
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