Can't install solar? How to cut your energy footprint anyway

Who this is for

Roughly a third of Australian households can't simply put solar on a roof: renters who don't own one, apartment owners governed by strata, and houses whose roofs are too shaded or structurally unsuitable. None of that locks you out of cheaper, cleaner energy - it just changes the toolkit. Everything below works without touching a roof, and most of it travels with you when you move.

We publish this knowing it sells nothing - it's the advice we'd give a family member in a rental.

Efficiency: the solar you already own

Every kilowatt-hour you stop needing behaves exactly like generated solar - saved at full retail rates, works at night, no installation required. The hierarchy from our efficiency article applies fully to renters: draught-sealing with removable strips and door snakes, LED swaps you take with you, killing standby loads with smart plugs, running reverse-cycle air conditioning for heating instead of resistive heaters, and retiring the second fridge.

For owners who can't do solar but can touch the building: ceiling insulation top-ups and heat pump hot water are the two highest-return upgrades in the house, panels or not - and heat pumps attract their own incentives.

Choose your electrons: plans and GreenPower

Your retailer choice is an energy decision you fully control from any dwelling. First, use Energy Made Easy and WattEver (see our retailer-offers article) to stop overpaying - an efficient home on a bad plan is still leaking money. Then, if cleaner supply matters to you, GreenPower is the government-accredited mechanism: you pay a premium and the retailer must purchase certified renewable generation matching your usage. It's the audited version of the vague 'carbon neutral' branding many plans carry - if you're paying extra, pay for the accredited thing.

Time-of-use plans can also reward flexible households without any solar: shifting washing, dishwashing and charging into off-peak windows is the no-hardware version of load management.

Routes to solar without your own roof

Renters: the split-incentive problem (you pay the bills, the owner owns the roof) is real, but worth one conversation - solar adds property value and rentability, some landlords will split the win, and state schemes have at times offered rental-property incentives worth checking at the time. Apartment owners: strata solar for common areas is increasingly common, and shared-solar arrangements that allocate rooftop generation to individual units exist - it takes a motion at the AGM, not a miracle.

And if you're a future owner: every efficient-appliance decision you make now - heat pump dryers, induction, efficient refrigeration - is portable groundwork for the solar home later.

What we'd skip

Plug-in 'balcony solar' kits sold online are not an approved pathway for grid-connected premises in Australia - compliance and safety rules exist for good reasons, and we'd steer clear. Unaccredited carbon-offset add-ons are similarly hard to verify; GreenPower is the audited alternative. Put the same money into efficiency and it returns every single day.