Households cash in on solar during heatwave

PRESS RELEASE
Yesterday’s high temperatures saw Queensland Reposit Power customers take the heat off their electricity bills by earning GridCredits.

GridCredits are a world first energy storage trading system that are earned when energy is sold back to the National Electricity Market (NEM) or network utilities.

Homeowners can earn GridCredits and combat increasing electricity bills by installing smart solar battery systems.
Reposit Power CEO, Dean Spaccavento, said today that the electricity grid can reach its capacity during extreme weather events creating an opportunity for households to earn money.“With everyone trying to stay cool yesterday, electricity demand in Queensland was high, which caused three GridCredit events to occur in one day.

“However, Queensland households aren’t the only ones who can earn GridGredits.

“GridCredit events typically happen in heatwaves, cold snaps, or in times of drought.

“With more extreme weather events predicted, and as more households adopt renewable energy, GridCredit events will happen more often.

“While the Grid is designed to deal with extreme weather, the longer an extreme weather event occurs, the more pressure it puts on the system, and as a result electricity prices increase.

“With Reposit, households can use this to their advantage by selling energy back to the NEM and earning GridCredits.

“Reposit can provide some relief to households from the current heatwave by lowering the cost of their electricity bill.”

For more information about Reposit visit repositpower.com

Comments

2 responses to “Households cash in on solar during heatwave”

  1. caskings Avatar
    caskings

    Missing is any useful information like how much a “Grid credit” is worth.

    1. Greg Hudson Avatar
      Greg Hudson

      Considering the wholesale price of the event in question (Sat 14 Jan at 4pm) hit $12,641.69c/MW that is a very good question. There was an even higher event the day before (Friday 13th Jan at 4:30pm) where the peak was $13,882.77 – (I happened to be watching the NEM and saw it unfold. OK, I may be strange having a window on my PC set to open the AEMO dashboard when I boot up, but that’s just me). You can download the data in CSV format here:

      https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data-dashboard#aggregated-data

      Bear in mind that the AEMO only saves the 30 minute settlement data, not the 5 minute ‘price’ data that the market actually uses – this in turn allows scumbag peaker plant operators to rort the system by jacking up the 5 minute price, and getting that price for 30 minutes. Cheeky (and currently legal), but very profitable !

      If you look at what Reposit says on their web site about ‘Grid Credits’ they will pay you $1 for 1kW of power you export from your battery. There is a HUGE discrepancy between $13.8k and $1 however the huge peaks are usually less than 5 minutes long, so you don’t really have much time to earn any Grid Credits. Theoretically, we should be able to work out how much Reposit gets, compared to what they pay their users (ignoring the 4% they add on as profit)…

      Theoretically, lets say you have a battery that can dump a maximum of 5kW in 1 hour. Divide that by 12 to get watts exported in 5 minutes = 417. Now lets get a price per watt from $13,800/MW = 1.38c/watt. Multiply by 417 and we get $5.75 earned in that 5 minute period. Reposit pays you $1 for the ‘event’, so where does the other $4.75 go? My guess is straight into Reposit’s bottom line. I may be wrong here, and I’d LOVE to hear from a Reposit rep to clarify this issue and set the record straight, or, someone much better at mathematics than I am… Anyone?

      IMO Reposit is a great idea, and if I had a battery I’d definitely join in on their scheme, but I’d like to see some transparency on how (exactly) a Grid Credit is earned, and how it relates to the price peaks/spikes.

      BTW, you can (eventually) read about these AEMO price spikes here:

      https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Market-notices-and-events/Pricing-event-reports

      But don’t hold your breath waiting for the report to appear !

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