Off-grid Solar Power

An off-grid photovoltaic system supplies electricity to a property that is not connected to the public electricity network. It is often referred to as a ‘stand-alone power system’ and functions as an independent power station. The four main components of an off-grid system are a solar array, a battery bank, an inverter-charger and a generator. Off-grid systems are currently designed using a string inverter. It is anticipated that the release of the Enphase IQ8 and Enphase battery will provide additional options for off-grid systems .

The heart of every battery system is an inverter-charger. The inverter-charger diverts power from the inverter directly to the house or batteries as required and converts stored DC energy in the batteries to AC electricity for use at night. It will stop the solar PV system from recharging the batteries once they are full.  The solar array (panels) should be located as close as practical to the battery bank and inverter / charger. When the sun is not shining on the solar array and producing electricity, the battery bank will send power to household appliances. If the battery bank state-of-charge level gets too low, the inverter/charger will turn on the fuel generator automatically to power the house electrical appliances and recharge the battery bank.

Our preferred inverter charger is the world-leading, Australian made Selectronics SP PRO which we can supply with a Selectronics-certified Fronius inverter.  You can be confident that as a Selectronic Accredited Integrator, we have undergone comprehensive training and assessment covering product design features, system integration, installation and field servicing of Selectronic inverters and have a robust understanding of how Selectronic inverters operate and interact with other components in a power system.

Given that battery technology is rapidly developing, our current preference is to supply either BYD or LG Chem lithium-ion batteries.

Wauchope Solar has accreditation to install off grid-solar. We have designed and installed over 30 off-grid solar PV systems on the Mid North Coast of NSW. As each site is different, solutions are tailored to best fit the customer’s needs. An off-grid power system is often the cheapest and cleanest way to supply reliable electricity to a premises that is not connected to the public electricity network.

We don’t service power systems for recreational and camping vehicles.

Warranties

REC Panels – 20+5 year product warranty, 25 year linear power output warranty

Fronius inverters – 5 plus 5 years manufacturer’s warranty

BYD – 10 year product warranty

LG Chem RESU – 10 year product warranty

Selectronics SP Pro - 12 year product warranty

Wauchope Solar – 2-year workmanship warranty

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Off-grid System Sizes and Capacity

“Small House” - consumption approx. 3kWh / day
1 x Fronius 4kW Selectronic-certified inverter
1 x Selectronic SP Pro inverter-charger (3.5kW)
16 x REC NPeak 330W panels
4 x BYD lithium 2.56kWh LV batteries
1 x IP20 BYD battery cabinet
1 x professional installation
• Fridge / freezer
• Most appliances
• Power tools
• Efficient lighting
• LCD television / DVD player
• Water pump
• Washing machine
• Vacuum cleaner
• Electric range / oven
• Air conditioner
• Clothes dryer
1 x Fronius 5kW Selectronic-certified inverter
1 x Selectronic SP Pro inverter-charger (5kW)
24 x REC NPeak 330W panels
6 x BYD lithium 2.56kWh LV batteries
2 x IP20 BYD battery cabinet
1 x professional installation
• Fridge / freezer
• Most appliances
• Power tools
• Efficient lighting
• LCD television / DVD player
• Water pump
• Washing machine
• Vacuum cleaner
• Electric range / oven
• Air conditioner
• Clothes dryer
2 x Fronius 5kW Selectronic-certified inverter
1 x Selectronic SP Pro inverter-charger (7.5kW)
36 x REC NPeak 330W panels
8 x BYD lithium 2.56kWh LV batteries
2 x IP20 BYD battery cabinets
1 x professional installation
• Fridge / freezer
• All appliances
• Efficient lighting
• LCD TV / DVD / Satellite player
• Water pump
• Washing machine
• Power tools
• Small air conditioner
• Efficient heat pump
• Electric range / oven
• Clothes dryer

Phone:
02 6587 5254

Address:
9 Merrigal Road,
Port Macquarie
NSW 2444

Mobile: 0448 875 254
Email: info@wauchopesolar.com.au

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