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Green Infrastructure (GI) Duska Disselhoff. | G REEN ( NATURE - BASED ) VERSUS G RAY ( MAN - MADE ) 1 Definition.

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Presentation on theme: "Green Infrastructure (GI) Duska Disselhoff. | G REEN ( NATURE - BASED ) VERSUS G RAY ( MAN - MADE ) 1 Definition."— Presentation transcript:

1 Green Infrastructure (GI) Duska Disselhoff

2 | G REEN ( NATURE - BASED ) VERSUS G RAY ( MAN - MADE ) 1 Definition

3 | GI PHASE 1 - HYPOTHESIS Green Infrastructure can provide more categories of benefits - economic, environmental, socio-political -, than traditional gray infrastructure Therefore the hypothesis is that: “Working together with natural systems can enable organizations to better manage disruptive events, such as mechanical failure, power interruption, raw material price increases, and floods, that often impair gray solutions. In other words, GI solutions can increase business resilience”. RAI-GI MEMBER COMPANIES : Royal Dutch Shell The Dow Chemical Company Swiss Re Unilever RAI-GI COLLABORATING PARTNERS : The Nature Conservancy 2 Hypothesis Resilience Action Initiative (RAI)

4 | 3 G REEN I NFRASTRUCTURE WENT PUBLIC ON 11 TH J UNE 2013! GI phase 1 case studies essreleases/leading-organizations- build-case-for-green-infrastructure.xml

5 | Evaluation criteriaGreen infrastructureGray infrastructure Stakeholder involvement Extended stakeholders are often required to support the project and may have an active and ongoing role in the project design and operation Stakeholders are often engaged with the aim to create local support for the project, but without active involvement in the project design and operation Engineering approach GI solutions require a custom-made, location-specific design and do not lend themselves to standardization and replication Traditional engineering solutions enable a standardize-and-replicate approach which can significantly reduce project costs and delivery times Physical footprint A large physical footprint is often required due to low energy density Usually, only a small physical footprint is required due to the high energy density Environmental footprint Often reduced environmental footprint due to GI solutions being nature-based and self-regenerating Often increased environmental footprint due to material and energy intensive processes (manufacturing, distribution, operation) Speed of delivering the functionality GI solutions may take time (years) to grow to provide a certain service and capacity Traditional engineering solutions provide functionality from day 1 of operation Susceptibility to external factors GI solutions are susceptible to extreme weather conditions, seasonal changes in temperature or rainfall and disease. Gray infrastructure is susceptible to power loss, mechanical failure of industrial equipment and price volatility. Operational and maintenance costs Operating and maintenance costs are often significantly lower (only monitoring and feedback is required) Operating costs are often significantly higher due to power consumption, operational and maintenance requirements Risk of price volatility GI solutions are relatively insensitive to fluctuations in the cost of raw materials, oil, gas and power Traditional engineering solutions are sensitive to fluctuations in the cost of raw materials, oil, gas and power Approach to system monitoring and control GI solutions are living and complex systems that can be monitored and effectively managed by a deep understanding of the key control variables Traditional engineering solutions are man-made systems that are typically designed with established monitoring techniques to effectively manage and control system performance Required operating personnel No need for 24/7 operational supervision because of the slower response times of GI solutions compared to gray solutions Complex control and safeguarding systems typically require 24/7 operational supervision Expenses for increasing capacity of system Relatively inexpensive to extend the capacity of the GI solution, provided there is physical footprint available Extension of capacity could be relatively inexpensive as long as significant modification or redesign is not required 4 G REEN VERSUS G RAY INFRASTRUCTURE T RADE - OFFS !!! C AN GI SOLUTIONS INCREASE BUSINESS RESILIENCE ?

6 | 5 H YBRID ENGINEERING Hybrid approaches, utilizing a combination of green and gray infrastructure, may provide an optimum solution to shocks and improve the overall resilience of an organization. Synergies occur from combining both engineering schemes, each building upon their respective strengths Nature-based Man-made Synergies H YBRID APPROACHES AS OPTIMUM SOLUTIONS

7 | 6 Example in Shell Disposal OptionPower requiredCO2 emissions Deep well disposalUp to 5.5 kWh/m31,960,000 t Reed bed0.1 kWh/m335,700 t R EED BEDS FOR WATER TREATMENT Nimr water treatment plant (NWTP), Oman Value Drivers Reduce high energy costs Reduce GHG emissions (power gen) Key enablers Environmental climate Political climate Critical success factors Collaboration with external party Step-wise increasing the capacity of the wetlands (hybrid solutions) Internal champion to drive the project Key risks / barriers Large land area required Time required to find solution Co-benefits Increased biodiversity Wetland functions as CO2 sink Options for saline agriculture

8 | GI phase 2 ( ) 7 3.Share knowledge on small scale, easy to replicate, hybrid GI projects Option 3.1-A: GI for coastal pipeline infrastructure erosion control Option 3.1-B: GI for onshore pipeline infrastructure erosion control Option 3.2: GI for China retail station water mgt and effluent treatment Shell, TNC (TBC), Bauer (TBC) 4.Explore GI opportunities for Dow & Shell co-located assets Option 4.1-A: Shell downstream assets: Deer Park refinery Option 4.1-B: Shell upstream assets: unconventionals Option 4.2: Development by Design of Colorado land reclamation Shell, Dow (TBC), TNC (TBC) GI application projects 5.Explore mutually beneficial GI related water technology solutions Option 5.1: develop nature-based progressive salt water treatment options Option 5.2: Saline agriculture related developments Shell, Dow (joint programs) 6.RAI design competition to link smart cities to GI via industrial ecology solutions Leverage GI phase 1 work for the Houston smart city pilot Link with the Gamechanger social innovation initiative Shell, Dow (TBC), RAI (TBC) GI exploratory projects 1.Develop a comprehensive techno-economic & environmental model to better evaluate green versus gray solutions Develop and calibrate the model using the PDO reed bed project Shell, Dow (share approach) GI knowledge projects 2.Design and develop a GI catalogue to help implement GI into our businesses Waste categories: GHG, water, solids, noise, chemicals etc Climate categories: tropical, polar / arctic, temperate, desert etc Shell, Dow (share approach)


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