Battery Economics
When a commercial battery actually pays back in WA
Three site scenarios at different scales, the maths underneath each, and the conditions that change the answer.
9 min read
Energy markets don't sleep.
Nor do we.
WA commercial energy costs are about to rise sharply. We're the platform that actively manages your energy assets so yours don't.
◆ The WA market is changing
The WA electricity market is about to change.
Network tariffs are restructuring. The reserve capacity charges every commercial site pays are being rebuilt. The cost of standing still is going up, year on year.
Businesses that just absorb rising energy costs will pay more every year. Businesses that actively manage their consumption, their solar, and their storage will not.
That's the gap eXtensa was built to close.
WEM · live dispatch
12:00 am AWSTSpot price
$84.20
Demand peak
16:45
Curtailment
3 evt
06:00 AWSTNow
Passive solar is about to cost your business a lot.
A solar system that runs whenever the sun is up is not the same as a solar system that's being managed. There are moments in the WA market when the smartest thing your solar can do is stand down. There are others when it should be running flat out.
Active management makes that call every interval. Passive systems don't.
◆ What we do
Make your energy assets work harder.
Cut energy costs
Find dollars hidden in the spend.
Active management of consumption, demand peaks, and tariff position. We find dollars most businesses don't know are there.
Active solar management
Solar that's actually being run.
Your solar, managed every interval against the WA market. Standing down when it should, running hard when it should, never on autopilot.
Justify the battery
The business case, then the operation.
We model the business case for a battery on your site, then operate it so the case actually plays out. No battery yet? We'll tell you whether one makes sense before you spend the capex.
Tariff & supply optimisation
Right tariff. Right supply.
We work with your retailer, not against them. Right tariff structure, right supply arrangement, right charging windows.
◆ Who we work with
Built for the businesses most exposed to rising energy costs.
Commercial & industrial
Commercial & industrial →WA businesses with high energy spend, peak-demand exposure, or existing solar that isn't pulling its weight.
Strata & embedded networks
Strata & embedded networks →Apartment buildings and mixed-use sites looking to lower levies, manage common-area energy, and add solar or batteries without upfront capital.
Installer partners
Installer partners →WA commercial solar and battery installers attaching a platform to projects and keeping the customer relationship.
◆ From the desk
The latest from the eXtensa team.
WA Market
What the WA market changes mean for commercial energy costs
Network tariffs, reserve capacity, the IRCR, and the AES Code. Four restructurings moving at the same time, and how they compound on a commercial bill.
10 min read
Solar
Why passive solar is about to cost WA businesses money
Solar that runs on its installation-day defaults was a sound investment in 2018. In 2026 it's an asset losing ground every quarter. Here's what changed underneath.
9 min read
◆ WA Energy Market
The rules underpinning your energy bill have been rewritten.
We track every change so the businesses we manage don't get caught flat-footed.
Read the WA Energy Market hub →◆ Start with a site review
Put your energy assets to work.
Free site review. We model your last 12 months under active management and show you the savings. No commitment.