Industries
Off-grid & custom
Complete off-grid systems, panel through battery, sized for real autonomy requirements rather than a rough days-of-storage estimate.
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Off-grid & Custom
Remote sites and custom fabrication.
Designed for your business
Telecom operators · Mining and oil & gas · Specialty developers
Improve uptime at remote assets
Compress build cycles
Complete off-grid systems, sized right
A complete bill of materials, not a partial one
Panels, charge controller, inverter and battery all get sourced as one system here, since an off-grid design fails if any one component is undersized relative to the others, unlike a grid-tied system that has the grid as a backstop.
Sized for real autonomy, not a rule of thumb
Days-of-autonomy targets get calculated against actual load and local solar resource data, since a remote site has no grid to fall back on if the sizing estimate runs short.
Charge controllers matched to battery chemistry
MPPT charge controller selection depends on the specific battery chemistry and voltage window in the system, and sourcing here checks that compatibility rather than assuming any controller works with any battery.
What changes on an off-grid build
Avoid an undersized system with nowhere to fall back
Full-system sizing against real load and autonomy needs catches a gap before it becomes a dead battery in the field.
Match controllers to chemistry correctly
Charge controller and battery compatibility gets confirmed before installation, not after a charging fault.
FAQs
How is an off-grid system sized differently than a grid-tied one?
A grid-tied system offsets consumption and leans on the utility for shortfalls, so it can be sized loosely against annual usage. An off-grid system has no fallback, so it must be sized to real autonomy requirements, worst-case sun hours, load profiles, and days of storage, not a rough rule of thumb. Undersizing leaves no backstop, which is why Sunhub sizes against actual autonomy targets rather than a generic days-of-storage estimate.
What equipment does a complete off-grid bill of materials include?
A complete off-grid system runs from panel to battery: modules, racking, a charge controller matched to the battery, the battery bank itself, an inverter or inverter-charger, plus balance-of-system components like wiring, overcurrent protection, disconnects, and often a backup generator. Missing any one piece can leave a system that cannot actually run a load. Sunhub builds the full bill of materials rather than shipping a partial kit that needs gaps filled later.
Does off-grid storage need a different battery chemistry than grid-tied backup?
Not necessarily a different chemistry, but the demands are different: off-grid banks cycle daily and deeply, so cycle life, depth of discharge, and temperature tolerance carry more weight than in an occasional-use backup bank. Lithium and lead-acid options each fit different budgets and duty cycles. The bigger requirement is matching the charge controller to whichever chemistry you choose, which Sunhub handles as part of the system spec.
