Experimenting with power: Cloudbass on pushing the boundaries of sustainable production on Speedway with Tesla Powerwall batteries By Heather McLean Wednesday, June 26, 2024 - 11:10
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Cloudbass recently ran a first of its kind trial in sustainability for TNT Sports, with the main broadcast powered by 10 Tesla Powerwall batteries
At Warner Bros. Discovery Sports' first Speedway of the season at Perry Barr Stadium in Birmingham, technical services provider Cloudbass ran a first of its kind trial that took the production to groundbreaking levels of sustainability.
Working on the broadcast for TNT Sports on 29 April 2024, Cloudbass powered the main broadcast from a revolutionary setup using 10 Tesla Powerwall batteries.
On the day the broadcast truck CBOB5 ran off 10 Tesla Powerwall batteries, a single set generator, as well as a twin set of generators on site as backup although they were not needed. As IP was not available at the stadium a sat truck was used and that was powered by a generator, however Steve Knee, managing director at Cloudbass, stated after the afternoon's broadcast that there had been enough power to run that also.
Meanwhile the pits were run off a portable power system called Instagrid with 2.1 kilowatt hours available. That ran the pit broadcast including radio cameras, radio mics, and in-ear mics. Another Instagrid ran the commentary position.
Says Knee on the broadcast trial, it is the, first in UK, could be the first in the world for this kind of set up, and it's incredibly exciting .
The Tesla batteries in the back of Cloudbase's CBOB5 truck for Speedway
Experimenting with power
Knee explains how the experiment came about: This started a few years ago now where I was putting together an RFP for a major broadcaster, and obviously we get the questions on sustainability in those RFPs, and I thought actually, rather than just virtue signalling, let's get down to where this carbon is being produced. I worked up a little spreadsheet, which I call our carbon calculator, and I went through a typical job and the transport and the power generation are the areas that the bulk of the carbon would be generated from.
It became very clear that it wasn't so much the trucks going to site; it was clear that the two areas most of the carbon on a job was coming from was crew transport lots of people going to site in individual cars and power generation.
Cloudbass has its own power systems division which means it is able to integrate its power solution with its technical solutions, and therefore experiment. Comments Knee: Whereas traditionally having a separate power supplier makes it more difficult to overcome any kind of issues, we're able to pursue things and look at ways to do things in a different way.
Cloudbass' experimentation with battery power started just after the pandemic, while it was working on a BBC Alba contract using smaller vans for a four camera production. Notes Knee: This allowed us to back the entire truck up with UPS, so we went to this model where we took two generators to site with the whole truck backed up on UPS. We only had to run one generator and then if we had a problem, we had 15 minutes to switch over to the other generator and carry on running, which means you're immediately more efficient.
What this also then allowed us to do as we were doing the Scottish Premier League for Sky, and for BBC Alba as well back then, we got some shore power supplies put into the stadiums, a 63 amp three phase. This meant that we could actually run off that shore supply and, again, if we had a problem, we had 15 minutes to fire up the generator and carry on from the generator and then off we go. So we had already started moving towards different kind of power generation methods and different ways of working, but obviously the big sticking point is the larger trucks.
Ramping up knowledge
Members of the Cloudbass team decided to ramp up their knowledge of battery power to see where it could go. Explains Knee: A year ago I wanted to get my teeth into domestic solar and battery storage because I really wanted to understand how it worked and what the real world data is and how you could use it.
Three of the directors [at Cloudbass] had solar and battery storage installed in our homes, so I've been experiencing the Tesla Powerwall for the last year. I've got a really clear idea about how the Tesla Powerwalls work and how they go between grid supply, solar supply, and running off the Powerwalls.
One thing that was clear to me is the way it was seamless in how it mixes between the different power sources, continues Knee. So I thought, right, okay, we need to try this on outside broadcast and take our power solution and our power to sites rather than relying on any kind of shore power , because the problem when you go to site with shore power is that quite often if something's changed at the venue or that supply is not working, and you're there on a Saturday and there's a problem with it, you often can't get someone to fix it and what have you, which is why we use generators because we know that we can turn up and we're going to have power.
Chaining up to 10 Tesla Powerwalls together provides 135 kilowatt hours of storage. A typical Tesla Model 3 car has around 75 kilowatt hours, so 135 kilowatt hours, is actually quite an appreciable amount of storage, says Knee.
On taking the leap to running an OB on Tesla batteries, Knee says: So it was like, OK, we think this could just about work . We had lots of real-world data based on how much draw our Scottish solution in the vans was using. I realised that actually a Tesla Powerwall solution would run us for 15 hours with no problem, even transmitting on satellite. That's more than enough time to do a product
