Thursday 30 July 2020

UK relaxes rules to allow more storage on the grid that makes way for “liquid air” storage


Highview Power cryogenic energy storage system


As the UK moves to net zero emissions by 2050 it is going to need much more battery storage to stabilise the grid as the number of solar and wind energy plants increase. So much so, the government is to relax the planning laws to make it easier to develop larger battery storage systems. The legislation will be introduced to remove barriers for storage projects above 50MW (megawatts) in England and 350MW in Wales. 


This will allow the UK company Highview Power (and others) to plan to build much larger electricity storage systems. Highview Power makes cryogenic storage plants that use [renewable] electricity to cool air to a liquid and store it in insulated tanks. The liquid air is then warmed by stored heat from the process to expand the gas 700 times to drive turbines which can add electricity back to the grid when required. 


The advantage of this system over chemical batteries is that it can be stored for days and can supply power for an extended period of time whereas chemical batteries can only supply power for a short period of time. Also, most of the materials and infrastructure needed are easy to obtain so the manufacture of this cryogenic battery is simple and possibly more sustainable (i.e. does not need rare metals). 


Video of Highview Power Cryogenic Energy Storage System 


Read more: 

- UK hopes to ramp up battery storage and boost renewables by loosening planning rules. CNBC, July 15 2020.  

Highview Power to build Europe’s largest battery storage system. The Chemical Engineer, November 29, 2019. 

Highview Power to build UK’s first “liquid air” energy storage facility. RenewEconomy, October 24, 2019. 

Highview Power: https://highviewpower.com/.

Thursday 23 July 2020

Electromotiv expands to supply more zero emission bus/truck powering hubs and bus/truck leases


Charging and Refuelling for Trucks. (Source: Electromotiv)


Electromotiv, based in the Australian Capital Territory, is in the business of supplying fast EV charging and green hydrogen fuel hubs for powering electric and hydrogen fuel cell buses and trucks. They also supply zero emission buses and trucks for lease. They are expanding from an electric bus trial in Canberra to business in Queensland and Auckland, New Zealand. 

In Auckland, Electromotiv have a contract to supply electric buses to Auckland Airport and in Queensland, they go into the final phase of design of a privately owned zero emissions bus hub. 

New Zealand has approximately 80 percent of its electricity coming from renewable sources which is mostly hydro and geothermal. This means the electric buses will be near zero emissions and these emissions will decrease as New Zealand moves towards net zero emissions by 2050. 

Queensland has only about 15 percent renewable electricity now but with the potential for much, much more. Such that Queensland is looking to improve that figure and becoming a green hydrogen producer through its Hydrogen Industry Development Fund. This fund is there to promote jobs in regional areas and to provide green hydrogen for local and export markets. The Queensland Government has also set a state target to reach net zero emissions by 2050. 

Read more: 
Transition to a zero carbon economy. Queensland Government. 
See also:

Wednesday 15 July 2020

Victoria making renewable electricity and heat from high strength organic waste


Image: Barwon Water


In south-west Victoria, Barwon Water is building two Renewable Organics Networks which will use high strength organic trade waste from the Australian Lamb Company (ALC) and Bulla Dairy Foods to make renewable electricity and heat.

The organic waste will be treated by Barwon Water to form biogas which will run turbines that create the electricity and heat for water. The waste at this point is used as a soil improver. 

Yes, burning the biogas has waste CO2 but it is CO2 from a renewable source not from fossil fuels - a complete carbon cycle is created. Otherwise the organic waste goes to landfill where it is covered by soil and in that anaerobic environment most of it decays to waste methane which is a 21 times stronger greenhouse gas than CO2.

The electricity will be used by Barwon Water to take it off-grid with the excess going to the main grid. The renewable hot water will go via a special pipeline to ALC where it will offset ALC's gas consumption by 21.4 terajoules per year.

"The project is expected to achieve a net production of 5.5 gigawatt-hours of renewable electricity each year – enough to power around 1,000 homes – around half of which will be used “behind-the-meter” to take the Colac Water Reclamation Plant off the grid." The generation of this dispatchable renewable energy in the form of hot water and electricity will result in a reduction in carbon emissions of around 6,300 tonnes each year.

Read more: 

Wednesday 1 July 2020

Reusable bamboo facial pads to reduce waste and plastic use


EverEco reusable bamboo facial pads (photo J May)


These soft, reusable bamboo facial pads by EverEco can be washed in the bag provided. Having these reduces the waste of throwaway pads and the use of plastic packaging. In addition, bamboo is an easily replaced fibre as it is a very fast growing plant.

EverEco has many different sustainable products which can be viewed here and ordered online: https://evereco.com.au/.

Australian green hydrogen refuelling stations and hydrogen fuel cell vehicles


Source: The Driven

In Port Kembla, NSW, a company named H2X plans to build a range of hydrogen fuel cell vehicles from cars to heavy duty trucks and even trains. It hopes to re-boot Australia's car industry with vehicles powered by green hydrogen and in doing so create many jobs.

The development of renewable hydrogen made by the electrolysis of water with power from renewable electricity has been funded by the Australian Clean Energy Finance Corporation. This will be a good move for Australia as it can make its own green fuel and export it as well. Australia imports its oil and only has a month to six weeks supply at any one time.

H2X has joined forces with Elvin Group which invests in Australia's Hydrostar's green hydrogen electrolyser technology. The Elvin Group will put small scale hydrogen electrolysers at service stations. They will be 500kW to 1MW containers for hydrogen production and hydrogen refuelling onsite for vehicles. The Queensland and ACT governments already have small fleets of hydrogen fuel cell cars and these Elvin Group systems are being trialled in the ACT (Australian Capital Territory).

Larger-scale electrolysers will be available for larger industries. The systems can be located at existing service stations or at business-based locations such as vehicle fleet depots, work sites, farms and distribution centres.

Read more: