Off-Grid Solar Power Systems: Penrith & The Blue Mountains

True Energy Independence for Rural & Remote Blue Mountains Properties
For acreage properties, rural blocks and bushland homes across the Blue Mountains, Hawkesbury and outer Western Sydney, grid connection isn’t always simple. Some sites face five and six-figure quotes just to bring power lines to the property; others sit on land where a grid connection was never run at all.
Off-grid solar removes the grid from the equation entirely. A correctly sized system pairs solar panels with battery storage and a backup generator so your property generates, stores and manages its own power, with no mains connection, no network charges and no exposure to blackouts caused by storms, bushfires or fallen trees on distant power lines.
E-Smart Solar designs off-grid systems specifically for our local terrain and climate — properties with tree cover and shorter winter sun hours in the Blue Mountains, exposed rural blocks around Penrith and the Hawkesbury, and everything in between. We size every system around your actual household or business load, not a generic template.
Off-Grid System Highlights
- Typical system range: 5kW–20kW+ solar array, sized to your load
- Battery storage: 10kWh–40kWh+ lithium battery banks for multi-day autonomy
- Backup power: Optional generator integration for extended low-sun periods
- No grid fees: No network charges, no supply charges, no rising tariffs
- Climate-matched design: Panel tilt and battery sizing adjusted for Blue Mountains tree cover and shorter winter days
- Remote monitoring: Track generation, storage and consumption from your phone
- Ideal for: Rural blocks, acreage, bushland homes, farms and properties facing high grid-connection quotes
- Service area: Penrith, Blue Mountains, Hawkesbury and Western Sydney


Off-Grid Solar with E-Smart Solar
Full Off-Grid System Design: Solar system, inverter, battery storage and generator integration engineered as one system, sized to your household or farm’s real daily and seasonal energy use.
Battery Storage & Backup: Multi-day battery autonomy for cloudy stretches, plus optional generator backup so you’re never without power during extended low-sun periods.
Off-Grid Solar for Rural & Farm Properties: From hobby farms near Penrith to bushland retreats in the Blue Mountains, we design around your property’s terrain, tree cover and access constraints.
Grid-Connection Cost Comparison: Facing a quote to run mains power to your block? We’ll help you compare that cost against a fully engineered off-grid system so you can make an informed decision.
Typical Off-Grid System Sizes
Household Type Suggested System Suggested Battery
- Small weekender / cabin (Blue Mountains) 5–7kW solar array 10–15kWh
- Standard family home (Penrith / Hawkesbury acreage) 8–12kW solar array 18–25kWh
- Large rural property / hobby farm 13–20kW solar array 25–40kWh
- Farm or commercial off-grid site 20kW+ solar array 40kWh+ with generator backup
These are indicative starting points only, every off-grid system we design is based on your property’s actual daily energy use, roof or ground-mount orientation, shading from tree cover, and how many days of autonomy you want during poor-weather stretches. We’ll model your exact system as part of a free, no-obligation site assessment.


Is Off-Grid Solar Right For My Property?
Off-grid is likely to suit your property if:
- Your property has no existing grid connection, or the quoted cost to connect is very high.
- You’re building a new home, cabin or shed in a rural or bushland part of the Blue Mountains, Hawkesbury or outer Western Sydney.
- You want protection from grid blackouts caused by storms, bushfires or fallen trees on rural power lines.
- You have enough roof, ground or shed space for the panel array your household or farm requires.
- You’re comfortable managing daily energy use around solar generation and battery storage, with generator backup for extended low-sun periods.
We assess grid-connection cost, roof/ground-mount options, shading and your household’s real energy needs as part of a free, no-obligation site visit, so you know exactly what an off-grid system will cost and deliver before you commit.
Frequently Asked Questions
What is off-grid solar, and how is it different from a normal solar system?
A standard grid-connected solar system still relies on mains power at night or during low generation, and typically exports excess power back to the grid. An off-grid system has no mains connection at all — solar panels, a battery bank and usually a backup generator work together to supply 100% of your property’s power, every day of the year.
How much battery storage do I actually need?
It depends on your daily energy use, how many days of autonomy you want during cloudy weather, and whether you’re pairing the system with a backup generator. As a guide, a typical family home on acreage in our area runs 18–25kWh of storage, while larger rural properties or farms often need 25–40kWh or more. We size this precisely during your free site assessment.
Is off-grid solar cheaper than connecting to the grid?
For properties facing a high grid-connection quote — common in parts of the Blue Mountains and rural Hawkesbury — an off-grid system can work out significantly cheaper over time, with no ongoing network or supply charges. For properties already close to the grid, connecting may still be the more cost-effective option. We’ll help you compare both during your consultation.
Do off-grid systems work well through Blue Mountains winters?
Yes, when they’re sized correctly. We account for shorter winter daylight hours, tree cover and site-specific shading when designing your array and battery bank, and we typically recommend generator backup for extended low-sun stretches so you’re never left short of power.
Already Off-Grid? Let's Upgrade Your System!
System & Battery Upgrades
Add extra panels or battery capacity as your household or farm’s energy needs grow
Upgrade ageing lead-acid battery banks to modern lithium storage
Add or upgrade generator integration for extra backup security
Grid-Connect Hybrid Conversion
If the grid later reaches your property, we can assess whether a hybrid grid-connect setup makes sense, keeping your existing battery system as backup while giving you the option to export or draw from the grid.
Off-Grid System Maintenance & Repairs
We can inspect, test, and repair:
Faulty inverters and charge controllers
Ageing or underperforming battery banks
Storm and bushfire-related damage
Old wiring, isolators and generator changeover switches
Off-grid systems installed by other companies
We also relocate or resize panel arrays and battery sheds if you’re renovating, extending, or building a new structure on your property.


