BUILDING SUSTAINABILITY APART FROM THE GREEN CREDENTIALS OF BOTTLEWORKS, SUSTAINABLE BUILDINGS PROVIDE HEALTHIER AND HAPPIER WORK ENVIRONMENTS. THE BUILDING HAS AN EXCELLENT A3 BER ENERGY RATING. The BER Rating covers energy use for space heating, water heating, ventilation, air conditioning and lighting. A-rated Offices are the most energy efficient and will tend to have the lowest energy bills. Nearly Zero Energy Building (NZEB). The nearly zero or very low amount of energy required for the building comes from renewable sources. Bottleworks proudly achieves the NZEB (Nearly Zero Energy Building) performance specification for energy and carbon dioxide emissions. WELLNESS Bottleworks provides open spaces and outdoor areas that can be used to promote and improve the wellness and health of its occupants.