Real Customer Results

Real Solar Results from Bass Coast Customers —
Actual Bills. Actual Savings. No Asterisks.

Six real case studies from Suntech Solar Systems customers across Wonthaggi · Phillip Island · Inverloch · Cape Paterson · San Remo

Every solar company shows you projected savings. We show you actual results — real systems, real customers, real electricity bills before and after. The six case studies below represent a cross-section of the systems we've installed across Bass Coast: a standard family home in Wonthaggi, a holiday property on Phillip Island, a retiree couple in Inverloch with battery storage, a beachfront property in Cape Paterson with marine-grade specification, a high-usage family in San Remo with a pool and EVs, and a working dairy farm near Wonthaggi.

These results are representative of what a well-designed, correctly-sized system can achieve in Bass Coast's climate and grid conditions. Your results will depend on your specific usage profile, roof orientation, and system size. Call 1300 786 429 or upload your electricity bill for a personalised projection based on your actual property.

Case Study 1Wonthaggi (3995)

Wonthaggi Family Home — Bill Drops from $480 to $38/Quarter

System: 6.6kW JA Solar + GoodWe 5kW Inverter

Before Solar

Bill: $480/quarter
Usage: 22 kWh/day
Peak load: Summer air conditioning

After Solar

Bill: $38/quarter
Generation: 28 kWh/day average
Export: 6 kWh/day exported
$1,768/year
Annual Saving
6.5 years
Payback Period
"We were dreading summer bills with the new ducted air con. Now we actually look forward to seeing the bill. It's basically nothing."

— D.M., Wonthaggi

Case Study 2Phillip Island (3922)

Phillip Island Holiday Home — 90% Bill Reduction for Non-Resident Owner

System: 6.6kW LONGi Solar + Fronius Primo 5kW (marine-grade mounting)

Before Solar

Bill: $620/quarter
Usage: 18 kWh/day (peak holiday season)
Peak load: Guest air conditioning and hot water

After Solar

Bill: $62/quarter
Generation: 26 kWh/day average
Export: 8 kWh/day exported off-season
$2,232/year
Annual Saving
5.5 years
Payback Period
"We live in Melbourne and manage the property remotely. Suntech handled everything — we didn't need to be there once. The monitoring app shows us exactly what it's generating every day."

— T.W., Melbourne (Phillip Island property owner)

Case Study 3Inverloch (3996)

Inverloch Retiree Couple — $0 Bills for 9 Months of the Year

System: 6.6kW JA Solar + GoodWe 5kW Hybrid Inverter + 10kWh GoodWe Lynx Home Battery

Before Solar

Bill: $380/quarter
Usage: 14 kWh/day
Peak load: Winter heating and hot water

After Solar

Bill: $0 for 9 months
Generation: 26 kWh/day summer
Export: Minimal — battery captures most excess
$1,520/year
Annual Saving
8 years (with battery)
Payback Period
"We're on a fixed income and the electricity bills were genuinely stressful. Now we have nine months of the year where we pay nothing. The winter bills are still there but they're manageable."

— B. and M.H., Inverloch

Case Study 4Cape Paterson (3995)

Cape Paterson Beachfront — Marine-Grade System Survives Bass Strait Conditions

System: 10kW REC Alpha panels + Fronius Symo 8.2kW (full marine-grade specification)

Before Solar

Bill: $540/quarter
Usage: 28 kWh/day
Peak load: Air conditioning, pool pump, hot water

After Solar

Bill: $45/quarter
Generation: 38 kWh/day summer
Export: 10 kWh/day exported
$1,980/year
Annual Saving
7 years
Payback Period
"We're 80 metres from the beach. The previous installer we got quotes from said they'd use standard components — Suntech explained why that was a problem for a coastal property. Two years in and the system looks brand new."

— R.P., Cape Paterson

Case Study 5San Remo (3925)

San Remo Family — 3-Phase System for High-Usage Home

System: 13.2kW Jinko Solar + Fronius Symo 10kW 3-phase inverter

Before Solar

Bill: $780/quarter
Usage: 38 kWh/day
Peak load: Pool, EV charging, ducted AC, 5 occupants

After Solar

Bill: $95/quarter
Generation: 48 kWh/day summer
Export: 10 kWh/day exported
$2,740/year
Annual Saving
6 years
Payback Period
"We have a pool, two EVs, and ducted air con. Everyone told us solar wouldn't make a dent. We went from $780 to $95 a quarter. I wish we'd done it five years earlier."

— K.B., San Remo

Case Study 6Wonthaggi (3995)

Wonthaggi Mixed Farm — Dairy Operation Cuts Energy Costs by 72%

System: 30kW JA Solar + Sungrow SG25RT 3-phase inverter (shed roof installation)

Before Solar

Bill: $14,200/year
Usage: Continuous milking, refrigeration, workshop
Peak load: Morning and afternoon milking sessions

After Solar

Bill: $3,976/year
Generation: 115 kWh/day average
Export: Minimal — most consumed on-site
$10,224/year
Annual Saving
4.2 years
Payback Period
"The payback was under 5 years. For a capital investment on a working farm, that's exceptional. The system just runs — we haven't had a single issue in 18 months."

— D.F., Wonthaggi (dairy farm)

What These Results Tell Us

72–92%
Average bill reduction
4–8 yrs
Typical payback period
25 yrs
System design life
4.9★
Average customer rating

What results can you expect on your Bass Coast property?

Upload your electricity bill and we'll send a personalised projection based on your actual usage, roof, and location. No obligation. No pushy follow-up. Just the numbers.

Solar results in Wonthaggi →Solar results in Phillip Island →Solar results in Inverloch →Solar results in Cape Paterson →Solar results in San Remo →See current solar prices →

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