Ah yes – a 6 stack of Goodwe ESA? Talk about no more grid reliance, or bills…. ever

At Newy Solar Co we’ve been fitting GoodWe ESA home batteries since the first units landed. As of 2026 the system has matured into one of the best‑selling single‑ and three‑phase battery solutions we offer. Below is an overview of what makes the ESA stand out, along with some real‑world observations from our installers.

What is the ESA?

GoodWe’s ESA (Energy Storage Application) is a modular all‑in‑one solar and battery system. Each tower combines a hybrid inverter, stackable battery modules and UPS‑grade switching so you don’t need a separate gateway box. The single‑phase model supports 3–10 kW of inverter capacity and up to 48 kWh of storage, while the three‑phase ESA offers 5–30 kW inverters with similar modular storage options. The system is CEC‑approved and designed for Australian homes.

Key Features and Benefits

High‑power 1C batteries

Unlike many batteries that can only charge/discharge at 0.5C, the ESA uses a 1C battery. That means it can charge or discharge its full capacity in one hour, enabling:

• Fast solar charging – the battery fills quickly on sunny days rather than trickling all day.
• Strong evening output – it comfortably powers multiple appliances during dinner time without hitting output limits.
• VPP readiness – high charge/discharge rates allow rapid response to virtual‑power‑plant and tariff programs.

Flexible solar design

The 10 kW single‑phase ESA has four MPPTs (maximum power point trackers), giving designers freedom to split arrays across east/west roofs or complex layouts. Each ESA inverter can oversize its PV input up to 200 %, meaning we can install more solar panels than the inverter’s nominal rating to maximise battery charging.

Ever thought about a night time view of the battery? Here is it, with a Goodwe ESA 6 stack 48kw/h unit with full blackout protection in Merewether Newcastle NSW.

Robust backup functionality

• Instant switchover: Integrated UPS‑level switching moves to backup in around 4 milliseconds, so lights and electronics rarely flicker during outages.
• Whole‑home backup: With pass‑through wiring up to ~63 A, the ESA can back up your entire house. Just remember the output is limited to the inverter size; a 10 kW ESA supplies up to 10 kW during a blackout.
• Black start capability: If the battery is flat after a long outage, it can reboot itself when the sun comes up using its own solar input—no grid needed.

Safety and durability

GoodWe uses Lithium‑Iron‑Phosphate (LFP) chemistry and layers multiple safety features:

• Integrated heating pads so the battery can charge and discharge safely down to around –20 °C.
• Cell‑level monitoring, independent module optimisation, integrated fire suppression and Arc Fault Circuit Interruption (AFCI).
• Modular stacks mean a faulty module can be swapped out without shutting down the whole system.

GoodWe backs the ESA with a 10‑year warranty covering either 70 % remaining capacity or 6,000 full charge cycles, whichever comes first.

Smart monitoring & integration

The ESA connects to GoodWe’s SEMS platform for real‑time monitoring, historical data, time‑of‑use scheduling and push notifications. It integrates with virtual power programs like Amber Electric and Origin Loop.

This is a three phase Goodwe ESA installed inside a little attached storage shed to the main house. It’s the perfect place for this system. This system is paired with 40kw/h of storage, full blackout protection, and Tindo Australian made panels!

Pros and Considerations

Pros

• Wide inverter sizing (single‑phase 3–10 kW; three‑phase 5–30 kW).
• Up to 200 % PV oversizing and simultaneous full battery charging and AC output.
• Modular, expandable architecture up to 48 kWh; easy to add more modules later.
• Built‑in backup and black start – no separate gateway required.
• LFP chemistry and layered safety measures.
• GoodWe has had a presence in Australia for over 15 years and offers responsive local support.

Considerations

• It’s a relatively new platform, so long‑term reliability data is still accumulating. However, when you compare the Company Goodwe against other companies – Goodwe has been around so much longer than most of the products on the market today.
• This is not a budget battery – so it cost more than the cheap stuff you see around. That being said – you get what you pay for, and the Goodwe ESA is still competitively priced, if you want a good quality installation.

Is the ESA Right for You?

For homeowners in Newcastle, Maitland and the Hunter who want a future‑proof battery with strong backup capabilities, the ESA is a compelling choice. Its high power, flexible design and robust safety features make it ideal for larger modern homes, especially those with three‑phase power or plans for an EV charger. As always, our team can tailor the inverter and battery stack to match your home’s energy needs.

Why We Recommend Tindo Solar Panels

Tindo Solar is Australia’s only large‑scale solar module manufacturer, operating from Mawson Lakes in South Australia. At Newy Solar Co we love supporting local manufacturing and have been impressed by the performance of Tindo’s Walara series modules. Here’s why we often include them in high‑end systems.

Local design and support

Tindo’s panels are designed and engineered in South Australia. Being local means shorter supply chains, Australian‑based service teams and a company that stands behind its products for the long haul.

Advanced N‑type technology for high efficiency

Tindo was the first Australian manufacturer to release an N‑type solar module. The Walara 430 G3P uses N‑type bifacial cells, achieving 22.0 % module efficiency. The newer Walara 440 G4P upgrades to TOPCon N‑type cells with 16‑busbar technology, pushing efficiency to 22.6 %.

N‑type cells degrade more slowly than traditional P‑type, meaning Tindo panels retain higher performance over time. Each panel’s positive power tolerance (0 – +5 W) ensures you get at least the rated wattage.

Strength and longevity

• Ultra‑rigid 35 mm frames minimise flex and protect against micro‑cracks.
• Fully tempered double‑ARC glass and IP68‑rated junction boxes help the panels withstand Australia’s harsh weather.
• Tindo employs a zero‑defect manufacturing process with seven quality checkpoints to catch defects before panels leave the factory.
• The panels are tested at the Desert Knowledge Australia Solar Centre in Alice Springs, where they consistently rank among the highest‑performing modules.

Warranties and durability ratings

• 25‑year product warranty and 25‑year performance warranty guaranteeing at least 87.4 % of initial power output after 25 years.
• Tested for thermal cycling (–40 °C to +85 °C for 200 cycles), damp heat, mechanical load (5400 Pa front / 2400 Pa rear), PID resistance and hail impact. Some panels have also been cyclone‑tested by Structural Engineering Consultants Australia (SECA).

Why choose Tindo with Newy Solar Co?

When we specify Tindo panels, you’re getting premium performance with local support. Their high efficiency and durability make them ideal for roofs with limited space or for customers who want the best Australian‑made technology. Pairing Tindo panels with a GoodWe ESA battery creates a fully integrated, future‑ready system that maximises self‑consumption and provides reliable backup.

Have questions about the right solar panels or battery for your home? Give us a call or request a quote – we’re here to help you design a system that suits your lifestyle and budget.