IFC Green Buildings Green Building Opportunities per Sector

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1 IFC Green Buildings Green Building Opportunities per Sector IFC Climate Business Group

2 Opportunities for Residential Homes Domestic properties can be broadly split into single family dwellings and multiple occupancy, each with differing design issues. Thermal comfort, hot water, and appliances should be the primary areas of focus for the greatest operational efficiencies. Global benchmarks (TBC) Apartments Houses 25 kwh/m2 50 kwh/m2 Roof and wall insulation Low environmental impact building materials [embodied energy] Water-efficient fittings and rain water collection Smart meters for better control and metering Solar hot water heaters

3 Opportunities for Commercial Offices Tenant demand is an important factor for commercial office space. A well- designed office building can reduce energy and operational costs significantly. Occupant needs and reputation are also important factors as is future proofing against obsolescence. Global benchmarks (USDOE, ECON19, BEE, APTU) Offices 200 kwh/ m2 Offices: typical energy use Catering 3% Office Equipment 11% Lighting 14% Fans & Pumps 14% Other 3% Servers 3% 3% Cooling/ Heating 49% Passive cooling and ventilation design Daylighting, lighting control, and lowenergy lighting Provision for cyclists and alternative transportation High-efficiency chillers such as ground source heat pumps

4 Opportunities for Healthcare Buildings Healthcare buildings in particular require a large degree of control due to the importance of comfort and hygiene for patients. Building systems therefore become the main focus. The challenge is to reduce energy and water use in these facilities while ensuring that patient outcomes are enhanced. Global benchmarks ( CADDET, USDOE, WSP) Hospital 400 kwh/m2 [or 30,000kWh/bed] Clinic 275 kwh/m2 Hospital: typical energy use Cooling in Warm or Heating in Cold Locations 51% Fans & Pumps 12% 6% Equipment 17% Lighting 14% Insulated and shaded facade Demand-controlled lighting systems Variable frequency drives and ventilation heat recovery High-efficiency chillers or tri-generation using absorption chillers

5 Opportunities for Education Buildings Educational buildings are all about the occupants and their use of the building. Ventilation, views, indoor environmental quality and acoustics are all important issues. University buildings are often ambitious in terms of sustainability for reputational reasons. Schools: typical electricity use Server & Specialist Computing 9% 12% Catering 12% Equipment 18% Global benchmarks (USDOE, WSP) School 125 kwh/m2 College 150 kwh/m2 Lighting 49% Daylighting, lighting control, and lowenergy lighting External louvers to minimize glare Passive cooling of classroom for thermal comfort Renewables such as PVs and wind turbines as an educational tool

6 Opportunities for Retail Spaces Within stores, the retail sector will not compromise on lighting and product placement. Malls are huge spaces to heat and cool, require full lighting in the daytime, and attract lots of private vehicle trips. Much can be accomplished with control systems and technology but as with all building types, passive architectural design and daylighting can significantly improve the retail experience. Global benchmarks (USDOE, WSP) Shopping mall 300 kwh/m2 Retail: typical energy consumption Shopping malls Home improvement (DIY) General merchandise Small food retailing Energy use per unit area kwh/m2 Daylighting and lowenergy lighting solutions Passive or low-carbon cooling options such as displacement ventilation Sustainable transport solutions, public transport, electric car points Renewables such as PVs on roof and wind turbines in the car park

7 Opportunities for Supermarkets Supermarkets are quite consistent in their needs for refrigeration and lighting. However they do offer substantial opportunities through the size and layout of sites to incorporate green measures. Their locations are highly determinant of the solutions deployed. Global benchmarks (USDOE, CIBSE) DIY stores 175 kwh/m2 General Merchandise 250 kwh/m2 Food retailing 500 kwh/m2 Supermarkets: typical energy use Fridge & Freezers 40% 13% Catering 13% Equipment 20% Low-energy lighting and daylighting Efficient refrigeration equipment and heat recovery Low GWP refrigerants and design to minimize leakage High-efficiency chillers

8 Opportunities for Hotels Hotels present substantial challenges and opportunities for sustainability. Since the guest experience cannot be compromised, water, energy, and resource use are all high. Ecotourism is attracting a more discerning customer in some regions and the use of local and natural resources is often attractive as well as sustainable. Global benchmarks Business or holiday hotel 250 kwh/m2 Budget Hotel 150 kwh/m2 Hotels: typical energy use Lighting 13% 9% Catering 13% Other 4% Vents, Pumps, and Fans 12% Building Heating and/or Cooling 50% Shaded and openable windows Auto switch-off A/C and lighting Solar water heating Treatment and reuse of waste water from showers and laundry

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