Solar batteries: Your questions answered

stone barn with tesla powerwall on exterior wall with view of garden
With no room inside their converted barn, the homeowners chose a Tesla Powerwall so it could be installed on the exterior of their property (Image credit: Jeremy Phillips)

Solar batteries effectively allow you to make use of the electricity generated by your solar panels when you need it most. While they might sound like a niche purchase, they're actually growing in popularity of late, especially in light of fluctuating energy bills and climate uncertainty. 

If you're investing in solar panels, it might seem like an obvious addition to your set-up, but there's certain elements you need to consider before you commit to solar batteries — including the price. 

David Hilton

David is a renewables and ventilation installer, with over 35 years experience, and is a long-standing contributor to Homebuilding and Renovating magazine. He is a member of the Gas Safe Register, has a Masters degree in Sustainable Architecture, and is an authority in sustainable building and energy efficiency, with extensive knowledge in building fabrics, heat recovery ventilation, renewables, and also conventional heating systems. He is also a speaker at the Homebuilding & Renovating Show. 

Passionate about healthy, efficient homes, he is director of Heat and Energy Ltd. He works with architects, builders, self builders and renovators, and designs and project manages the installation of ventilation and heating systems to achieve the most energy efficient and cost effective outcome for every home.