Diamond Light Source - Annual Review 2022/23 - Concise Edition

10 11 D I A M O N D L I G H T S O U R C E A N N U A L R E V I E W 2 0 2 2 / 2 3 D I A M O N D L I G H T S O U R C E A N N U A L R E V I E W 2 0 2 2 / 2 3 Buildings, Infrastructure & Energy Savings Pete Coll, Head of Installation & Facilities Management Group Expanding Facility Since opening in 2007, the Diamond facility has continued to steadily expand. By 2017, I12, I13, I14 (including eBIC/ePSIC) and I21 external buildings had been constructed with the Active Materials Building completed in 2021. Diamond’s Installation and Facilities Management (IFM) Group have played a major role in either managing design/construction activities directly or assisting external consultants to deliver these facilities. A further expansion followed with the completion of the Optics Fabrication Building (OFB) in July 2022 (see Fig. 1). The OFB is a 350m 2 steel framed building with insulated cladding and a mono pitch roof. Foundations were made up of screw piles with cast in-situ concrete ring beams to support a block and beam floor, this work being undertaken during shutdowns to minimise vibrations to the Synchrotron with the rest of the construction work (cladding, screeding, M&E work, flooring and decorations) carried out during operations/ shutdowns. As part of Diamond-II, the Optics Metrology Laboratory (OML) needed to be relocated to allow space to build the CSXID flagship beamline. The new Optics Metrology Laboratory 2 (OML2), located in Zone 4, was recently completed (see Fig. 2).Works will soon commence to relocate equipment from the present OML into the new facility. Demolition of the old laboratory can then begin together with modifications to B16 creating the space required on the Experimental Hall floor for the CSXID beamline. Figure 1: Optics Fabrication Building. Figure 2: Optics Metrology Laboratory. Figure 3: Artist’s impression of complete solar panel installation. Figure 4: Annual savings by activity for 2022. insulation and replacement of the top sheeting before the installation of 2.7 MWp of solar panels (see Fig. 3) which will deliver ~ 2.3 GWh of electricity per annum, being approximately 5%of Diamond’s annual electricity consumption. Energy Savings Since 2010, Diamond has matured its energy saving programme culminating in a total estimation of electrical energy savings of £9.3 million to date, with the highest amount of savings being recorded in 2022 at £1.8 million. The main contributors to electrical energy savings have been the introduction of light sensors, changing fluorescent lights to LEDs and the installation of variable speed drives on numerous fan and pump systems (thus allow ‘turn down’ in the circulation of unnecessary air/water). The pie chart (Fig. 4) shows annual savings per category for 2022 (excluding the projected savings from the solar panels on the Synchrotron roof ). Savings compared with actual electrical consumption are shown in the left axis in Fig. 5. The right axis shows the reduction of carbon emissions as a result of these energy saving measures in conjunction with the use of ‘greener’ electricity, the government’s target being to drive for full decarbonisation of the National Grid by 2035. Figure 5: Annual Electricity Consumption with Estimated Savings (kWh/Yr) and Emissions (Tonnes of CO2). Infrastructure Upgrades As Diamond’s facilities grow, there has been a need to expand and upgrade the mechanical and electrical infrastructure to support the expansion. Over the years, there have been significant modifications carried out on the chilled water system including new chillers/adiabatic cooling and introduction of additional cooling water circuits. The high voltage infrastructure has also recently been upgraded to accommodate Diamond’s expansion for at least the next ten years. Due to quality issues in the initial synchrotron roof build resulting in significant deformation, a new roof was needed and has now been installed. Diamond also took the initiative and opportunity of installing solar panels as part of the replacement. The project entailed the removal ~32,000 m 2 of sheeting material, replacing all support fittings, replacing/enhancing the