https://specplumb.com.au/blogs/community/how-to-apply-for-small-scale-technology-certificates-stcs-for-solar-hot-water-systems 2026-08-11T16:27:57+10:00 weekly https://cdn.shopify.com/s/files/1/0751/5121/2850/articles/Apply_for_STC_e63a5e40-830f-45ee-9e1b-c197de2876c0.png?v=1786429677 How to Apply for Small-scale Technology Certificates (STCs) for Solar Hot Water Systems