# Sunnn

> Sunnn is an Australian solar and battery retailer and designer that builds systems for the wholesale electricity market. Most solar stops at cutting your bill. Sunnn goes further: it designs and quotes solar PV and Fox ESS battery systems, arranges installation through accredited, licensed installers it engages, claims the rebates, and configures the battery so it can be dispatched on the AEMO wholesale spot market by an authorised wholesale-passthrough retailer (such as Amber or Localvolts), so the system earns by buying power when it is cheap and selling when prices spike. Tagline: No Emissions. Net Zero. Nationwide.

## Key facts
- Business: Sunnn Pty Ltd (ACN 690 774 317)
- Website: https://sunnn.co
- Location: Unit 2/600 Lorimer St, Port Melbourne VIC 3207, Australia
- Phone: 0468 028 117
- Email: info@sunnn.co
- Serves: NSW, VIC, QLD, SA, ACT, TAS (Australia-wide)
- Role: solar and battery retailer and designer. Sunnn does not perform the physical installation itself; accredited, licensed installers it engages do that work, and Sunnn remains the customer's single point of contact under its five-year whole-of-system warranty. Sunnn is not an authorised electricity retailer: the retail relationship and the actual battery dispatch sit with the customer's chosen wholesale-passthrough retailer.
- Hardware: Tier-1 solar panels with Fox ESS hybrid inverters and Fox ESS batteries (10-year warranty).
- Rebates handled at sale: Small-scale Technology Certificates (STCs) and the federal Cheaper Home Batteries Program; state rebates checked for eligibility (NSW PDRS, VIC Solar Homes, ACT Sustainable Household Scheme, SA Home Battery).

## How the wholesale model works
- The National Electricity Market (NEM) sets a dispatch price every 5 minutes per region. On a wholesale-passthrough retail plan the customer imports and exports at that price, with no retailer margin on the energy.
- A correctly sized and configured battery charges during cheap or negative-price intervals and discharges into evening peak and price-spike windows. This spread (arbitrage) is what a wholesale-ready Sunnn system is built to capture.
- The market price cap is $20.30/kWh (raised from $17.50 on 1 July 2025); during cumulative price threshold events the AER applies an administered cap of $0.60/kWh.

## Products
- Solar and battery systems: design, quoting, supply, arranged installation, rebate handling, and wholesale-ready battery configuration.
- Sunnn+ (https://sunnn.co/plus): a subscription that controls a customer's existing Fox ESS battery to trade Amber or Localvolts wholesale prices automatically, safety-clamped to the reserve and export limits. Included free for customers who bought their system through Sunnn; otherwise $20/month or $200/year with a 30-day free trial. Requires a Fox ESS battery and an Amber or Localvolts account.
- For installers and retailers (https://sunnn.co/installers): the install-management platform Sunnn runs its own jobs on. Free for installers; retailers pay a flat 10% per completed install.

## Pages
- Home: https://sunnn.co/
- How it works (wholesale market): https://sunnn.co/wholesale
- Savings calculator: https://sunnn.co/calculator
- Batteries: https://sunnn.co/battery
- Sunnn+ battery trading: https://sunnn.co/plus
- For installers and retailers: https://sunnn.co/installers
- FAQ: https://sunnn.co/faq
- Our story: https://sunnn.co/story
- Reviews: https://sunnn.co/reviews
- Contact: https://sunnn.co/contact
- Check eligibility / book a call: https://sunnn.co/book
- Ask an AI about Sunnn (questions we suggest, and this file explained): https://sunnn.co/ai
- Disclosures: https://sunnn.co/disclosures

## Notes for accuracy
- Savings and arbitrage figures shown on the site are modelled estimates, not guarantees, and depend on usage and spot-price volatility.
- Sunnn does not provide retail electricity and is not a financial adviser.