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Solar Energy

Does Solar Work in the Snowy Mountains? Your Questions Answered

7 min read

One of the most common questions we get: "Does solar even work in the Snowy Mountains?"

The short answer: Yes, and it works better than you might think.

Why Solar Works in Alpine Areas

Cold Temperatures = Better Performance

This surprises most people, but solar panels are actually *more efficient* in cold weather:

  • Solar panels lose efficiency as they heat up
  • Cold alpine air keeps panels cool
  • A panel at -5°C can be 10-15% more efficient than the same panel at 35°C
  • Winter in the Snowy Mountains provides ideal operating temperatures
  • Clear Skies = Strong Generation

    The Snowy Mountains has:

  • High altitude = less atmospheric interference
  • Clear winter days = strong direct sunlight
  • Low humidity = better solar transmission
  • Reflective snow = additional light bouncing onto panels
  • Jindabyne averages 4.2 peak sun hours daily — enough for strong solar generation year-round.

    Real-World Performance

    A typical 6.6kW solar system in Jindabyne generates:

  • 8,500-9,500 kWh annually
  • Summer: 35-45 kWh per day (peak December-January)
  • Winter: 15-25 kWh per day (June-July)
  • Spring/Autumn: 25-35 kWh per day
  • Even on cold, clear winter days, generation can exceed 20 kWh — often more than the property uses.

    What About Snow on the Panels?

    Snow does temporarily reduce generation, but it's not the problem people imagine:

    Snow Melts Quickly

  • Panel angle: Tilted panels shed snow naturally
  • Dark surface: Panels absorb heat and melt snow from underneath
  • Morning sun: Even weak winter sun melts snow within 1-2 hours
  • Black frames: Heat up faster, accelerating snow melt
  • In practice, panels are usually clear by mid-morning after snowfall.

    Optimal Tilt for Snow Shedding

    We install panels at steeper angles (30-35°) in alpine areas:

  • Standard tilt: 23° (optimal for latitude)
  • Alpine tilt: 30-35° (better snow shedding)
  • Trade-off: Slightly lower summer output, but better winter performance and faster snow clearing
  • Snow Isn't Common in Inhabited Areas

    Most Snowy Mountains properties are below the snow line:

  • Jindabyne (916m): 10-15 snow days per year
  • Berridale (850m): 5-10 snow days
  • Cooma (800m): 5-8 snow days
  • Higher altitude properties (Thredbo, Perisher, Charlotte Pass) see more snow, but panels still generate well during clear periods.

    Economics: Does Solar Pay Off Here?

    Yes — actually faster than many parts of NSW.

    High Electricity Costs

    Regional NSW electricity is expensive:

  • Essential Energy Network: Average 32c/kWh
  • Sydney average: 26c/kWh
  • Snowy Mountains homes: Often 28-35c/kWh
  • Higher electricity prices = faster solar payback.

    Solar Payback Period

    For a typical 6.6kW system:

  • System cost: $5,500-$7,500 (after STCs)
  • Annual savings: $1,200-$1,800
  • Payback period: 3.5-5 years
  • 25-year savings: $35,000-$50,000
  • Federal Incentives

    The federal government provides STCs (Small-scale Technology Certificates):

  • 6.6kW system: ~$2,200-$2,800 in rebates (2026 rates)
  • Rebates decrease each year — install sooner rather than later
  • Solar for Holiday Homes

    Many Snowy Mountains properties are holiday homes. Solar still makes sense:

    Reduce Holding Costs

    Holiday homes still consume electricity:

  • Refrigerators running year-round
  • Security systems
  • Heating timers (prevent pipes freezing)
  • Hot water systems
  • Standby loads
  • Solar reduces these costs to near-zero.

    Battery Storage = Remote Monitoring

    Pair solar with battery storage:

  • Alerts if power fails (prevents pipe freezing)
  • Maintain security systems during outages
  • Remote monitoring via app
  • Run essential loads without grid
  • Rental Income

    Airbnb/Stayz guests appreciate:

  • Eco-friendly properties
  • Off-grid experience (if combined with battery)
  • Lower operating costs = competitive pricing
  • Properties with solar and battery backup can charge premium rates.

    System Sizing for Alpine Homes

    Typical Home Loads

    Snowy Mountains homes use more electricity than average due to:
  • Electric heating (ducted, underfloor, panel heaters)
  • Hot water systems
  • Longer winter darkness = more lighting
  • Average daily consumption:

  • Summer: 12-20 kWh/day
  • Winter: 25-45 kWh/day (heating)
  • Annual average: 8,000-12,000 kWh
  • Recommended System Sizes

    | Property Type | Recommended Size | Annual Generation | Coverage |

    |---------------|------------------|-------------------|----------|

    | Small cabin/cottage | 3-4kW | 4,200-5,500 kWh | 50-70% |

    | Standard family home | 6.6kW | 8,500-9,500 kWh | 60-80% |

    | Large home or lodge | 10-13kW | 13,000-17,000 kWh | 70-90% |

    We always size based on your specific consumption, roof space, and budget.

    Panel Selection for Alpine Conditions

    Not all solar panels handle alpine conditions equally:

    What We Recommend

    Tier 1 Panels with:
  • High snow load rating (5400Pa minimum)
  • Temperature coefficient: <-0.35%/°C
  • Warranty: 25+ years
  • Salt mist and ammonia resistance (for rural properties near farms)
  • Brands We Install:
  • Canadian Solar
  • Jinko
  • LONGi
  • Trina Solar
  • Q Cells
  • All meet Australian standards and have local warranty support.

    Mounting and Flashing

    Alpine installations require:

  • Reinforced mounting: Higher wind loads
  • Premium flashing: Prevent ice dam leaks
  • Corrosion-resistant materials: Stainless steel or marine-grade aluminum
  • We don't cut corners on mounting — it needs to survive decades of Snowy Mountains weather.

    Inverter Placement

    Inverters need protection from extreme cold:

  • Garage or shed: Ideal (protected but ventilated)
  • External mounting: Requires weather-rated enclosure
  • Avoid: Exposed outdoor walls (freezing impacts performance)
  • Off-Grid Solar Systems

    Many remote Snowy Mountains properties are off-grid. Solar is essential:

    Off-Grid System Components

    1. Solar array: 10-15kW typical

    2. Battery bank: 20-40kWh (larger than grid-tied)

    3. Backup generator: 5-10kVA diesel or LPG

    4. Hybrid inverter: Manages solar, battery, and generator

    Off-Grid Costs

    Off-grid systems are significantly more expensive:

  • Grid-tied 6.6kW system: $5,500-$7,500
  • Off-grid 10kW system with 30kWh battery: $35,000-$55,000
  • But for remote properties, it's often cheaper than paying $50,000-$150,000 to connect to the grid.

    Common Questions

    Q: Will hail damage my panels?

    Quality panels are tested to withstand 25mm hail at 23 m/s. We use panels rated for extreme weather.

    Q: What about bushfire risk?

    Solar panels are non-combustible. Installations in bushfire-prone areas must meet AS 3959 standards — we ensure compliance.

    Q: Can I add battery storage later?

    Yes. We always install hybrid-ready inverters so batteries can be added when prices drop or needs change.

    Q: How long do panels last?

    25-30 years typical lifespan. Panels still produce 80-85% of original output after 25 years.

    Q: Do I need to clean them?

    Rain usually does the job. In dry periods, we recommend annual cleaning. Snow acts as a natural cleaning agent.

    Get a Solar Assessment

    Every property is different. We provide free solar assessments including:

  • Roof inspection and shading analysis
  • Consumption analysis from bills
  • System sizing recommendation
  • Production estimates
  • Payback calculation
  • No-obligation quote
  • Contact us for your free solar assessment.

    Ready to Get Started?

    Get in touch for a free quote on your electrical project