Ampguru ETS

19/10/2026

Case Study: 18.64 kWh FoxESS Battery with Blackout Protection in Forrestfield

By the AmpGuru Team • 18/06/2026

Quick Summary

A family of four in Forrestfield, WA, had a 6.6 kW solar system installed in 2021. The panels were still near-new and performing well, so replacing them made no sense.

The problem was timing. The panels produced most of their power in the middle of the day, when the house was often empty. That surplus was exported to the grid for a few cents per kWh. In the evening, when the family was home, they bought power back from Synergy at full price. They also wanted the house to keep running when the grid went down.

AmpGuru kept the existing panels and added a battery system around them. The new system uses a FoxESS H1-5.0-E-G1 5 kVA hybrid inverter and four FoxESS EQ4800 battery modules, giving 18.64 kWh of storage. It includes blackout protection, so essential circuits stay powered during an outage.

System Details
System Details
Panels 6.6 kW (existing, installed 2021)
Battery size 18.64 kWh (4 × EQ4800 modules)
Battery brand FoxESS EQ4800
Inverter FoxESS H1-5.0-E-G1, 5 kVA hybrid
Blackout protection Yes, backup circuit configured
Location Forrestfield, WA
Household Family of 4
Supply phase Single phase
House storey Single storey
Installation type Residential
System type On-grid with backup
Warranty 10-year inverter, 10-year battery
The Customer’s Goals

The family’s 2021 solar system was still a good investment, and they wanted to get more value from it rather than start over. Their goals were to:

Keep the existing 6.6 kW panels in place.
Store daytime solar and use it in the evening, when a family of four uses the most power.
Keep essentials like lights, the fridge and internet running during a blackout.
Get the most out of the WA and federal battery rebates.
Have room to expand storage later if their needs grow.
The Challenge

The panels were generating well; the issue was when the power was produced versus when it was used. Under Synergy’s buyback rates, exported solar earns very little, while evening grid power is the most expensive the family buys. With two adults and two kids, the evening load is substantial, so a small battery would run flat well before morning.

The new system had to meet three requirements:

Integrate with the existing 6.6 kW array without compromising its performance.
Store enough energy to cover a busy family evening and overnight base load.
Provide reliable, automatic backup during grid outages.
Our Solution

After assessing the existing array, the switchboard and the family’s power bills, we recommended keeping the panels and adding a FoxESS hybrid battery system.

FoxESS H1-5.0-E-G1 (5 kVA hybrid inverter): a single-phase hybrid inverter that manages energy flow between the panels, the battery, the house and the grid. It also provides the backup output for blackout protection.
4 × FoxESS EQ4800 modules (18.64 kWh): a modular, stackable LFP battery. It is sized to carry the household through the evening peak and overnight, and more modules can be added later.
Blackout protection: a dedicated backup circuit that switches over automatically when the grid fails, keeping essential loads running.

The system was installed under the WA Residential Battery Scheme and the federal Cheaper Home Batteries Program. AmpGuru handled all rebate paperwork, Synergy approvals and VPP enrolment.

Installation Process

The install was planned to cause minimal disruption to the family. Our team:

Assessed the switchboard and separated the essential loads onto a dedicated backup circuit.
Mounted the inverter and battery stack in a protected location suited to Perth’s summer heat.
Connected the existing 6.6 kW array to the new H1 hybrid inverter.
Tested every component individually, then ran a simulated grid outage to confirm the backup changeover.
Commissioned the system and set up monitoring in the FoxESS app.
Showed the family how to track solar generation, battery charge and household use from their phone.
Outcomes for the Customer
The near-new 2021 solar system was kept, protecting the original investment.
Daytime solar is now stored and used in the evening instead of being exported cheaply.
Grid use after sunset has dropped substantially.
Essential circuits stay powered during blackouts.
The family now uses a much larger share of the solar their panels produce.
The system can be expanded with more EQ4800 modules as their needs change.
Rebates reduced the upfront cost.
Customer Testimonial

⭐⭐⭐⭐⭐ “Really happy with the service. The team was on time, polite, and did exactly what they said they would do. Outstanding reasonable price. Special Thanks to the team leader.”
— Ajay K., Forrestfield (Google review)

Your Solar Is Already Working. Make It Work Around the Clock.

If your panels are only a few years old, you don’t need to replace them. A correctly sized battery lets you use your own solar at night and keeps your home running when the grid goes down.

Thinking about adding a battery to your existing solar? Contact AmpGuru, SAA-accredited solar and battery specialists, for a free, no-obligation assessment.

Call now to connect with business.

23/09/2026

☀️ Power a Brighter Tomorrow with AMPGURU ETS! 💡

Save money. Be energy independent. Add a battery and get more from your solar system! 🏡

⏰ WA household rebates are changing soon. Lock in now before costs go up!
Rebates decrease and your out-of-pocket cost increases from 1 November 2026.
👉 Act now and secure today's prices!

✨ SPECIAL OFFERS ✨
✅ GoodWe 5kW Inverter with 16.64kWh Battery: $7,999 (fully installed*)
✅ FOX 5kW Inverter with 23.3kWh Battery: $5,999 (fully installed*)

🔋 BATTERY RETROFIT
Already have solar? Add a battery and start saving more!
💰 Lower power bills
🌿 Cleaner energy
🏠 Energy independence
🔋 Prepare for tomorrow

📝 HOW TO LOCK IN THESE PRICES
Send us the following and we'll confirm if your home is standard:
1️⃣ Your name
2️⃣ Phone number
3️⃣ Your address
4️⃣ Your latest Synergy bill

📧 Email: [email protected]
💬 Or message us on: 0411 716 000 (we often miss calls, so a message is best!)

🏠 If your house is standard, these prices hold!
🔧 Any extra requirements may cost more, but don't worry. We'll give you all prices upfront before any work starts.

✅ No subcontractors. No overseas call centre. All installs are done in-house by our own electricians, engineers and support team.
✅ Fully licensed. Fully insured. A local Australian business supporting our community.

🤝 Trust a local team that does it all, from advice to installation and ongoing support.

📲 Don't wait! Send us a message today and secure your solar & battery system before the rebate changes.

*Price applies to standard installations and includes available rebates. Conditions apply.

04/09/2026

🔋⚡ PERTH BATTERY SALE — prices you'll never find again.

Power prices keep climbing. A home battery lets you store your own solar and stop paying peak rates — and right now the numbers have never stacked up like this:

🔻 18kWh battery from just NOT-$4899, GET IT FOR $4499 fully installed (after govt grant) 💰 Up to $5,000 government battery grant — applied for you 🏦 0% interest loan up to $10,000, backed by the WA Government 📉 Slash your bills and take back control of your power

👉 Pay more than $250 a quarter for power? You most likely qualify.

These grants step down in November — once they're gone, this price is gone.

✅ Installed by Ampguru ETS — SAA accredited, NETCC approved (New Energy Tech Approved Seller) ✅ Owner-led by a licensed Electrician & Engineer (EC 17236, MEng, MIEAust) — no subbies, no call centres ✅ Sized to your home, usage & budget

⏱ Act now — secure your quote within 6 working hours* — then simply compare & book.

📞 0411 716 000 — or comment "QUOTE" and we'll reach out.

*6 working hours applies to quote requests on business days. From-price after grant, for eligible customers; savings & eligibility vary by home.

Call now to connect with business.

26/08/2026

Perth — you're selling your power for 2c and buying it back at 29c.

Here's the maths nobody explains at the sales table. Your panels export surplus power to the grid for around 2c per kWh. Come 6pm, when the aircon and the oven and the kettle all switch on, you buy that same power back at around 29c.

That's more than 14 times what you were paid for it.

A battery closes that gap. Sun goes in during the day, your house runs on it at night — at 2c, not 29c.

FoxESS EQ battery package — $4,999.99 inc GST

18.64 kWh usable storage
5 kW hybrid inverter included
WA Battery Scheme rebate already taken off the price
Federal battery incentive already taken off the price
VPP-ready, so you can get paid for the capacity you're not using
Full install, commissioning, Synergy and Western Power paperwork — all handled

Designed as an add-on for homes that already have solar on the roof.

Why now, honestly

Two reasons, and neither is a sales tactic. The federal battery incentive steps down as the scheme rolls on — it has already dropped this year, and it drops again. And battery stock across Perth is tight right now; the units at this price are the ones already allocated.

Installation slots at this price run to 1 November 2026. After that it's whatever the rebate and the stock situation looks like then.

Who you're dealing with

I'm Akshay — I own AmpGuru ETS and I do the installs myself. No call centre, no subbie you've never met turning up. EC17236, SAA accredited, NETCC Approved Seller, Plenti Accredited Vendor.

Book now to reserve your installation slot.

Call 0411 716 000 or email [email protected] for a straight answer on whether a battery actually stacks up for your place. If it doesn't, I'll tell you that too.

20/08/2026

No more chasing the designer.

You know how it goes. You ring three solar companies, and then you spend the next fortnight chasing someone to actually send you a design.

We've cut that out.

Jump on ampguruets.com.au, hit Instant AI Design, and Emily — our AI designer — will:

☀️ find your roof from satellite imagery
☀️ work out how many panels actually fit on it
☀️ show you a 3D layout and your estimated savings
☀️ lay out your battery options side by side

About 60 seconds. No salesperson, no pressure, no phone call.

See something you like? Request a quote right there and we'll price it up properly — designed and installed by a licensed WA team. SAA accredited, Tesla Powerwall certified, EC 17236.

⚡ Have a look → ampguruets.com.au
📞 Or just call us → 0411 716 000

17/08/2026

🔋 500,000 home batteries now installed across Australia — and WA households can still stack two incentives.

✅ Federal Cheaper Home Batteries discount — around 30% off the upfront cost
✅ WA Residential Battery Scheme rebate — up to $1,300 (Synergy) or $3,800 (Horizon)
✅ No-interest loan of $2,001–$10,000 over 3–10 years for eligible households (combined income under $210k, credit check applies)

Already have solar? A battery can be added to your existing system. No solar yet? We'll do both together.

We handle the whole job end to end — Synergy application, Western Power approval, install, VPP setup and every piece of rebate paperwork. Turnkey, no headaches.

📞 Call us on 0416 210 007 for a free, no-obligation quote.

Ampguru ETS | EC17236 | NETCC Approved Seller

10/08/2026

🔋⚡ Perth — slash your power bills before the grants shrink!

Add a home battery and take control of your energy. Right now you can grab:

✅ 18kWh battery from just $4,899 fully installed (after govt grant)
✅ Up to $5,000 government grant applied for you
✅ 0% interest loan up to $10,000 — backed by the WA Government
✅ Estimated $20,000+ in savings over 10 years

Batteries sized to your home & budget (10–41kWh). Installed by Ampguru Electrical Solution — SAA accredited, NETCC approved, and the owner (your Electrician & Engineer) is on every job. 🔧

📞 FREE no-obligation quote: 0416 210 007
Grants step down in November — don't miss out!