# Solar & Battery Systems — Chatswood, NSW 2067
Canonical URL: https://empireelectricalcontractors.com.au/services/solar-battery/chatswood
Empire Electrical Contractors · Phone +61468404608 (24/7)

Grid-connect solar, batteries and EV-ready system design

Design and install of grid-connect solar and battery systems in Sydney — quality panels, hybrid inverters and Tesla Powerwall / Sungrow / Alpha ESS batteries. CEC-accredited, quoted honestly.

## Local context
Chatswood sits in Upper North Shore, Sydney. Postcode 2067, coordinates -33.7969, 151.183.
Nearby landmarks: Chatswood Chase, Westfield Chatswood, Chatswood Interchange.
Common property types: high-rise apartments, commercial towers.
a major shopping and commercial hub where dense apartment towers need common-area switchboard compliance alongside strong demand for commercial fit-out work
We also service: Artarmon, Willoughby, Castlecrag, Roseville, Lindfield, Killara.

## What's included
- 6.6kW to 13kW residential solar design and install
- Battery storage — Tesla Powerwall 3, Sungrow, Alpha ESS
- Hybrid inverter upgrades on existing solar
- EV-charger-ready system design
- Consumption monitoring and app dashboards
- STC rebate and NSW battery rebate handled for you

## Overview
Solar in Sydney only pays if it's sized properly for your daytime consumption and installed with quality gear that lasts 15+ years. We design systems around your actual usage (bill and interval data pulled from your retailer), not a generic "6.6kW fits all" default — most Sydney households benefit from 8-10kW of panels feeding a hybrid inverter that's battery-ready even if you don't add the battery on day one.
For battery storage we install Tesla Powerwall 3, Sungrow SBH, and Alpha ESS SMILE — sized to your evening load, not oversold. A well-sized battery covers the evening peak and overnight base load, cuts grid import by 70-90%, and keeps essential circuits alive during a blackout. The NSW battery rebate (from 2024) is available to eligible households and we handle the paperwork.
Every install is designed and signed off by a CEC-accredited designer/installer — the legal requirement to unlock STC rebates. We handle Ausgrid grid-connection approval, the switchboard changes required for solar/battery integration, EV-charger-ready wiring and CT clamps for consumption monitoring, and the compliance package your retailer needs for feed-in tariff.

## Fixed pricing
$8,000–$22,000 AUD per battery. Workmanship warranty 60 months. Typical on-site duration ~8 hours.

## Symptoms we hear about
- Existing solar with no battery backup
- Blackouts leaving PV useless
- Older inverter due for replacement

## Common causes
- Grid-tied systems without battery-ready inverter
- Ageing string inverters
- No essential loads sub-board

## How we handle it
1. **Assess** — Review PV size, usage patterns and switchboard layout to size battery correctly.
2. **Design** — Battery, backup gateway and essential loads panel documented and quoted.
3. **Install** — Battery mounted, gateway integrated, essential loads sub-board wired.
4. **Commission** — System commissioned, app configured, monitoring tested and handover pack supplied.

## Applicable standards
- AS/NZS 5139 — Battery system installation
- AS/NZS 4777.1 — Grid connection

## Recent anonymised jobs
### New solar and battery installation
A newly built home in Chatswood wanted solar and battery from day one. We installed rooftop panels, a hybrid inverter and battery, then commissioned the system with the retailer for feed-in approval. Jobs like this between Chatswood Chase and Westfield Chatswood are part of our regular Chatswood run, so callouts here rarely wait long. It's a pattern we see across Chatswood: a major shopping and commercial hub where dense apartment towers need common-area switchboard compliance alongside strong demand for commercial fit-out work
Outcome: Solar and battery commissioned, feed-in approval granted.. Approx. 480 minutes on site.

### Backup circuit board for blackout protection
After repeated outages in Chatswood, a homeowner wanted key circuits to stay powered from their battery. We split off a backup board covering fridge, lighting and data, wired through the existing battery's backup output. Most of the housing on this side of Chatswood is high-rise apartments, so we planned cable routes and fixing points around that before touching a tool. Jobs like this between Chatswood Chase and Westfield Chatswood are part of our regular Chatswood run, so callouts here rarely wait long.
Outcome: Essential circuits protected during blackouts, verified with a test outage.. Approx. 220 minutes on site.

## FAQs
**How big a system do I need?**
Most Sydney households sit best on an 8-10kW panel array. Enough to cover daytime consumption, charge an EV or battery, and generate a healthy feed-in on sunny days. Bigger isn't always better — over-sizing beyond your export limit wastes money.

**Is a battery worth it?**
For most households on a Sydney time-of-use tariff, yes — a properly-sized battery cuts grid import by 70-90% and pays back in 6-9 years with the NSW rebate. If you already have solar and pay high evening tariffs, the payback is shorter.

**Do you handle rebates and paperwork?**
Yes — STC rebate, NSW battery rebate (where eligible), Ausgrid grid-connection approval and retailer feed-in tariff notification are all handled by us.

**How much does a solar and battery system cost?**
A quality 6.6kW system starts around $5,500 after STC rebate. 10kW solar + 10kWh battery lands around $18,000 after STC and NSW battery rebates. Written fixed quotes provided after a proper site assessment.

**Are you CEC-accredited?**
Yes — CEC-accredited design and install (legally required to claim the STC rebate). All electrical work certified with a Certificate of Compliance.

**Can the battery keep the house running in a blackout?**
Yes — Tesla Powerwall 3 and Sungrow SBH both support whole-home or essential-circuit backup. We wire it as part of the install so lights, fridge and Wi-Fi stay live through outages.

**Will you match a cheap door-knocker quote?**
No — we'll show you exactly what you'd be getting for that price (usually tier-3 panels, an unsupported inverter and no consumption monitoring) and quote a properly-designed system that will still be running in year 15. Cheapest and best rarely overlap in solar.

## Reviews
Aggregate: 5/5 across 195 Google reviews.
- Shirish Shetty (5/5, 2026-06-01): Absolutely outstanding electrician and genuinely one of the best people to work with. He diagnosed and fixed the issue within a couple of hours. He was professional, efficient, and reliable.
- Jie Z (Jessica) (5/5, 2026-06-01): VERY HIGHLY recommend! We had an issue with power at home and needed someone urgently to restore the electricity service. They responded quickly, showed up on time, and got everything back up and running without any hassle.
- Vin J (5/5, 2026-03-01): I highly recommend Joe, he's very skilled, kind and does honest work. He did a massive last minute job for us, installing an entire 17.4kw ducted aircon system after our old unit broke.
- Jennifer Cornish (5/5, 2025-11-01): Exceptional Service - Highly Recommend! I contacted Joe from Empire Electrical to install new powerpoints and downlights. His professionalism, punctuality, and thoroughness stood out.
- Jasmin Cumming (5/5, 2025-07-01): I am so glad I called Empire Electrical. Joe is a very honest person which is hard to come by. He explained everything to me and charged me an incredibly fair price.