Jul 19, 2024
Electric Avenue: 19th July

Earning a place on this week's electrification podium, Auckland's new electric bus hub (and Palmerston North's big electric bus investment), Germany's new law enshrining solar rights and how tenants can benefit from publicly-owned panels in Zurich, an Australian experiment shows how EVs could play a role during grid emergencies (and why we need smart charging to reduce stress on the grid), and the inside story of New York's first all-electric skyscraper.

Bussed a move

How we get around is one of the biggest contributors to our emissions. Leg power is still the lowest impact (and highest fitness) option, but if that’s not possible then public transport is next best, and it's even better with the range of new electric buses hitting the streets. 

In Auckland, Kinetic, which runs the AT bus service, has just opened its new fully electric bus hub in New Lynn and it says it’s the biggest in Australasia. 

It can power 86 buses from 44 charging stations and one charge is good for 350km, which equates to “10 return trips from Britomart to New Lynn via Newmarket on Route 24, which is serviced exclusively with zero-emission bus depots. The depot uses about 23,400 kilowatt hours of power per day - the equivalent usage of around 1,200 households - mostly between 10.30 pm and 5.30 am".

Back in March, Palmerston North nailed a New Zealand first by going all-electric with its 42 strong bus fleet, which was part of a huge investment in public transport. 

As regional council chair Rachel Keedwell told RNZ: "It was only a minor increase in costs to be a fully electric fleet. I think it was going to be 80 percent electric, so we decided it was worth it. The long-term benefits of it were worth the extra investment."

In many cases, the much cheaper running costs of electric transport options already make them the smart option. But as these vehicles start to reach price parity with fossil fuel options on upfront costs, there’s no contest.  

Sun on deck

Solar power can significantly reduce energy bills, but renters are often left out in the cold. In Germany, however, that’s just changed and apartment dwellers and tenants have been given the legal right to install solar panels on their balconies. 

More than half of the population in Germany live in rented accommodation and the ruling that enshrines access to solar into law means it will be difficult for landlords and associations to stop the use of plug-in solar devices. 

“Demand for balcony solar systems, which typically cost between 500 and 1,500 euros, surged last year. Some 550,000 devices are in operation, half of which were installed in 2023, data from the BSW solar power association showed.” 

In Zurich, tenants can buy a share of solar panels in a publicly owned solar plant to help reduce bills. In Australia, these schemes are known as solar gardens and while positive, owning your own panels is always the best bet in terms of cost reductions, which is why we need to fix the finance to allow that to happen. The public ownership model in Zurich means there’s less likelihood of profit-taking middlemen involved, so it’s good to see some different options available that help tenants. 

And, it always pays to remember what this perceptive poster says: 

Sending it

An Australian project looking at the role EVs could play during grid emergencies clearly illustrates that electric vehicles are more than just cars; they are ‘batteries on wheels’. 

As researcher Bjorn Sturmberg says, the average electric vehicle battery stores more than two days worth of household electricity in Australia, and some modern vehicles can feed energy back into the grid when needed. 

When a storm brought lines down earlier this year, 16 government-owned Nissan Leafs provided 107kW of support to the grid. 

“This was the first time in the world such a vehicle-to-grid response to a grid emergency has been demonstrated. For context, we would need only 105,000 vehicles providing such a response to fully cover the typical spare capacity in the NSW and ACT system used to balance supply and demand when an unexpected event occurs. We already have more than 200,000 electric vehicles on Australian roads.”

It does go the other way, too, and smart charging of EVs will also be required so undue stress on the grid is avoided. 

“Our results show vehicle-to-grid can be a powerful contributor to power system security. At the same time, they highlight the need to make better use of any available flexibility in the timing of when certain appliances use power.”

Building up, building electric

Fossil gas may have a role to play in some sectors, but it’s running out in New Zealand so we shouldn’t be using it in our homes. In New York, many homes are in tall buildings and, as Bloomberg wrote, New Yorkers use so much public transport, buildings are the biggest source of emissions, not transport as in most of the US. “Energy-efficient buildings will be crucial to the city’s push to cut its greenhouse gas emissions 80% over 2019 levels by 2050”.

Image: Michael Young

“Surrounded by buildings that rely heavily on gas and oil for energy, 505 State Street is New York’s first all-electric skyscraper … When team members asked what the complex would look like absent gas, the answers were fairly straightforward. ‘Instead of a gas boiler, an electric boiler; instead of a gas cooktop, it was an induction cooktop. And literally that was it,’ said [company president AJ Pires], noting that they had to revise the design of the electrical room to allow for higher amperage, since more incoming electricity would be needed for a larger electrical load."

And the pièce de résistance is undoubtedly the sculptural plug.

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