Solar energy on the farm: the voice of the scientist

This was originally written for the Kandos School of Cultural Adaptation https://www.ksca.land/blogfeed/2019/5/15/solar-energy-the-scientists-view

Bjorn Sturmberg, solar scientist, offers his thoughts on collaborating with Epicurean Harvest farmers Erika and Hayden, and sculptor Mark Swartz. He gave this spiel via skype to the audience at the Art and Farming Picnic at Bula Mirri Farm on 28 April 2019 (you can read Alex’s blog about that day here).

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The voice of the farmer: Erika Watson

We bought Bula Mirri farm 2 years ago, first with the goal of rebuilding our business Epicurean Harvest (we had started on leased land) and creating our home, then with the aim of bringing people into the farm space and share the passion and creativity used to regenerate landscapes. The property is 120 acres, of which 2.5 acres is currently a commercial farm. We want Bula Mirri to be a place dedicated to regenerative and collaborative practices to provide people with connection to land, provenance, food and culture. After the recent second workshop session here on the farm, Hayden and I are so thrilled to be reigniting our creative passions and exploring our farming knowledge and methods with KSCA artists like Mark, Laura and scientists like Bjorn.

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Batteries on wheels

Sarah Wilson reports on the bold initiative using electric vehicles to power our energy grids in The ANU reporter.

To make sure we have low or zero carbon emissions, we need to electrify as much as possible as quickly as possible.

This may seem like a herculean task. The good news is we don’t need to double the size of our electricity network in order to get there. In fact, the keys to solving the problem are, in some cases, literally in our hands.

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The driving force behind REVS (Realising Electric Vehicles-to-grid Services)

A bold initiative of the ACT Government, to electrify its fleet of vehicles, has grown into a world-leading research and demonstration project that is setting the scene for large-scale adoption of vehicle-to-grid technology in Australia.

A story by Sarah Wilson on the BSGIP website.

There is a buzzword in Europe’s energy business sector, and in particular in Germany’s Energiewende (energy transition). It’s called ‘sector coupling’. Instead of the traditional separation of the energy sectors – electricity, heating and cooling, transport and industrial processes, ‘sector coupling’ refers to the integration of two or more sectors to create synergies.

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“Everyone’s a winner”: PICA Group secures Australian-first strata solar electricity deal

“I see this as everyone is a winner. The proposition for tenants is they don’t have to change anything that they are doing, they are just now having their electricity bills reduced and they also get to feel better by having that cheaper power also be cleaner power,” Dr Sturmberg said. 

“For generators, power purchase agreements (PPA) have been really quite an important way to de-risk their investments in their developments. 

“What is happening in that PPA is you’re locking in the rates all the consumers will be paying for that power – that means as a generator you have certainty.” 

Dr Sturmberg, who is also the founder of social enterprise SunTenants, says to date these types of energy deals have largely been driven by governments, despite demand from renters and smaller entities. 

“It is a really great way for consumers of electricity to have a more direct relationship or direct buying power towards renewables rather than just buying from the national electricity market,” he said. 

“PPAs have started to become more accessible to smaller entities and currently the ACT government has been extremely successful with its power purchase agreement. It’s made the Territory powered by 100 per cent renewable electricity and has in the process saved Canberra millions of dollars.”

Full article in The Fifth Estate here https://thefifthestate.com.au/innovation/residential-2/everyones-a-winner-pica-group-secures-australian-first-strata-solar-electricity-deal/

ACT’s big battery pledge is a step forward

This week, ACT Labor proposed a network of large batteries in the territory that will have a total capacity of 250 megawatts. That’s two-thirds larger than the world’s current largest battery, which is in South Australia, and may well be amongst the top 50 by the time it’s completed.

While little is known yet about the plans beyond the headline, the capacity and the budget spend ($100 million over five years), the general concept is commendable.

The ability to store electricity, such as in batteries, is increasingly critical for us to continue the transition to a zero-emissions future. By supporting battery storage, an investment like this will continue the territory’s international leadership on clean energy, following in the footsteps of the very successful and influential wind and solar reverse auctions.

The proposal is to distribute the batteries across the ACT. This is an excellent move, because it will showcase the versatility of batteries to provide services in a diversity of settings.

Full OpEd in The Canberra Times https://www.canberratimes.com.au/story/6951076/acts-big-battery-pledge-is-a-step-forward/

It’s time for Australia to start World War Zero

This article originally appeared in the Canberra Times.

We could ignore the graphs showing a persistent rise in CO2 levels. We could aircondition our way through record-smashing heat waves. We could turn our backs on inland areas gripped by years of drought. But this summer we cannot escape the stinging taste of smoke, and the knowledge that it came from an unfathomable 26 million acres of fire, many billions of animals, and over 2000 homes.

The banality of global warming is over. No longer are the consequences of our actions far away in time or space. The nightmarish future we were long warned about has arrived and is staring us in the face along firefronts thousands of kilometres long and 70 metres high.

The experiences of this summer – which is far from over – are scary. The tragic loss of dozens of lives is deeply saddening. The long-term health effects on millions of Australians are confronting.

But rather than despair, Australia should follow a bipartisan group of American leaders and declare the start of World War Zero.

The proposed warlike commitment to driving carbon emissions to net zero is demanded by the scale and existential threat of global warming.

As in war, it is mission-critical for politicians to put aside their squabbles to unite to align the powers of all citizens and sectors to work towards a clear collective goal: in this case, keeping the world inhabitable.

The international immensity of the challenge may seem beyond our grasp, but we should draw courage from Australia’s proud record of contributing to global challenges: lest we forget the sacrifices of two world wars.

The good news is that we are well-armed to take up the fight.

Our plans and actions may not be perfect – they never are for wicked problems – but as in times of war, this is no excuse to defer.

One of our secret weapons is the ability of farmers to sequester carbon into their soils. This will not only reduce the concentration of carbon dioxide in the atmosphere, but will increase the land’s water-holding capacity, productivity, and drought resilience. Australian farms alone have the potential to sequester tens of gigatonnes of carbon dioxide, which they can be paid for through Australian and international carbon markets, where prices are on the rise. Governments should support farmers to capture this opportunity by providing financing for the infrastructure and learning-curve costs involved in shifting their management practices. This can be integrated into drought-recovery packages.

In the energy sector, the objectives must be to build more solar and wind farms, and new transmission lines for them to connect to. We also need to complement these with energy storage systems like batteries and pumped hydro. Closer to home, the distribution system could be strengthened with microgrid technologies that are able to keep local energy networks powered when they’re cut off from the national system, such as during natural disasters.

The decarbonisation of transport can be accelerated by rolling out a great national network of rapid electric vehicle charging stations along highways and in towns. Governments also need to remove perverse financial incentives while ensuring sustainable funding for road maintenance. Industry and governments must work together to create a road map for electrifying freight that provides futures for workers whose jobs will be automated.

These targeted actions must be complemented by an economy-wide price on carbon, which is the internationally agreed strategy that will unite Australia with our allies.

All of these tools are affordable, scalable, and available immediately. Not only have they been proven to be effective, but they will create new, largely rural, jobs and stimulate economic growth that is fit for purpose in a world economy committed to net zero emissions by 2050.

Our plans and actions may not be perfect – they never are for wicked problems – but as in times of war, this is no excuse to defer. We must act as if what we do now makes a difference, because it does.

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