Renters can ask the landlord to install solar, possibly agreeing on how the upfront cost and future electricity savings are shared. If rooftop panels are not practical, consider a community solar scheme, a renewable electricity plan from an energy retailer, or small approved portable solar equipment used safely and according to the rental agreement. Check with your state or territory energy department about available programs, as eligibility and benefits vary and may depend on the property owner and system. Get written landlord permission before making any electrical changes, and use a licensed electrician for fixed installations.