Our Data Methodology

Primary Data Sources

• Clean Energy Council (CEC) Approved Products List - Official registry of all products eligible for government rebates and incentives in Australia
• Manufacturer Data Sheets - Technical specifications and warranty information directly from manufacturers
• Historical CEC Records - Tracking approval dates, expiry dates, and product lifecycle data from 2009 onwards
• Market Research & Industry Reports - Australian solar industry analysis from reputable sources
• Consumer Reports & Feedback - Real-world performance data and warranty claim patterns

Market Pattern Recognition

We analyze historical patterns from the 2009-2012 solar panel rebate era to identify similar trends in the current battery market. This comparison is based on:

• Rate of new manufacturer approvals before, during, and after rebate periods
• Product lifecycle duration (approval to expiry dates)
• Manufacturer longevity and market exit patterns
• Price trends relative to market maturity
• Product range depth indicating business commitment

Manufacturer Risk Assessment

We evaluate manufacturers based on objective, verifiable criteria:

• Market Tenure: Years active in Australian market (CEC approval history)
• Local Support: Verified Australian offices, phone support, and warranty centers
• Product Commitment: Number of approved models and product range diversity
• Pricing Stability: Price positioning relative to market averages over time
• Approval Continuity: Gap patterns between product approvals and renewals

Manufacturer Market Assessment

Each manufacturer is assessed across multiple weighted factors:

Price Analysis

Average prices are compiled from CEC data, installer quotes, and market surveys. We track:

• System pricing trends (5-10kWh residential installations)
• Price positioning of established vs new entrants
• Quality brand pricing stability over time
• Correlation between price drops and market influx periods

Data Limitations

• CEC approval ≠ product quality guarantee. CEC approval means a product meets minimum technical standards for rebate eligibility, not that it’s the best choice for your needs.
• Historical patterns indicate risk, not certainty. While history suggests patterns, individual manufacturers may defy trends. Our analysis identifies risk factors, not guarantees outcomes.
• Estimated pricing may vary. Prices shown are averages and may differ based on location, installer, installation complexity, and current promotions.
• Market data has lag time. CEC data reflects approval dates, not necessarily when products become available or popular in the market.

Update Frequency

• CEC Product Data: Synchronized weekly with official CEC approved product lists
• Market Analysis: Updated monthly based on new approvals and market trends
• Pricing Data: Reviewed quarterly based on installer surveys and market reports
• Manufacturer Profiles: Continuously updated as new information becomes available