Before PVs became affordable, excess solar energy was stored thermally. Energy storage, both thermal and electrical, aids grid penetration of renewables and builds resilience on-site. We’ll look at passive and active thermal storage in advanced buildings, either integrated with the structure or as remote storage. We’ll also look at battery storage in an off-grid project and hydronic storage in a proposed small commercial project and show via an interactive model the effects of varying PV and storage capacity, and how storage increases the percentage of solar energy used on-site. Lastly, we'll discuss the integrated design process required to deliver these buildings.