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Riding comfortably in busses that use little electricity

Benedikt Vogel

The electrification of local public transport is in full swing. Building battery-operated buses and trolleybuses that combine passenger comfort with low power consumption is technically challenging. Research institutions such as the Swiss Federal Institute of Technology (Eidgenössische Technische Hochschule/ETH) in Zurich are supporting manufacturers with important findings such as the optimal use of batteries, for example. A current research project aims to improve the energy supply for heating, ventilation and air conditioning. Weiterlesen

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Energy Innovation in China

Swissnex China

General overview
China is both the world’s biggest clean energy investor and the world’s largest CO2 emitter. It is on track to becoming the world’s renewable energy superpower: China is the world’s largest producer, exporter and installer of solar panels, wind turbines, batteries and electric vehicles.

Even though renewable energy investments declined from $122 billion in 2017 to $86 billion in 2018, China still has by far the largest capacity. It also has a clear lead in terms of the underlying technology, with well over 150,000 renewable energy patents as of 2016, 29% of the global total. The next closest country is the U.S., which had a little over 100,000 patents, with Japan and the E.U. having close to 75,000 patents each.

The share of non-fossil fuels in China’s total electricity mix is on course to hit 32-34% in 2020. With increasing demand, China added about 40 GW of solar and 40 GW of coal in 2019. There is a lot of room for renewable energy, since coal’s share in China’s primary energy mix was still 58% in 2018 and electricity demand keeps growing. Weiterlesen

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Next-generation rooftop solar panels achieve record efficiency

insolight

The Swiss company Insolight is taking a whole new approach to creating high-efficiency solar modules for the rooftop market. Its patented optical system concentrates light onto an array of tiny spacegrade multi-junction photovoltaic cells. While today’s rooftop standard modules typically show an efficiency of 17-19%, Insolight’s pre-production module has been validated at an impressive 29% by the Universidad Politécinica de Madrid (IES-UPM), two years after a first record on a lab prototype. The company based at the EPFL Innovation Park has taken a decisive step towards industrialization with its first pre-production full-size series, cost-effective and compatible with existing assembly equipment.

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