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Why Green IT is hard


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Proposition is made that Green IT is not a technical problem, but an economical problem to be solved.
Presentation as follow up on the publication of the book Greening IT ISBN 8791936020

Published in: Business, Technology
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Why Green IT is hard

  1. 1. Why Green IT Is Hard - An Economic Perspective -
  2. 2. Setting the Stage As organizations increase their offerings of digital services, the demand for communication, computing and storage capability increases. At the same time: The purchase price of a new (1U) server has been exceeded by the capital cost of power and cooling infrastructure to support that server and will soon be exceeded by the lifetime energy costs alone for that server Business demands drive the growth of IT energy usage
  3. 3. Drive Towards Energy Efficiency? Is there a need to do something about these rising energy needs of data centers? What about:  Increasing energy costs for organizations;  Increasing strain on the existing power grid;  Increasing capital costs for expansion and construction of data centers;  Regulations, standards and compliance;  Corporate reputation But are we taking action? You could say there are technical, financial, legislative, compliancy, and moral triggers to act and cut down energy usage.
  4. 4. Why Wait? There are many technical solutions to improve energy efficiency. So what’s missing here, why is IT not so much greener than it is today? Is one of the main reasons that IT is not green at this moment at least as much due to perverse incentives? Shouldn’t we incorporate economic- behavioral analysis to Green IT to explain this current failure better? Business demands drive the growth of IT energy usage
  5. 5. IT at Work, The Risk of Incoherency The components of power, cooling, air handling last a longer time than IT infrastructure. As an assurance, frequently an excess of devices are purchased to guarantee capacity in extreme IT load scenarios. Responsibility of using a data center falls across projects, IT departments, business departments, corporate real-estate and (depending on the sourcing model being used) other IT organizations. With conflicting interest and siloed decision making energy inefficiency becomes the rule
  6. 6. Energy at Work, The Risk of Flexibility In the energy supply chain there are several actors. Organizations that generate power, transmission network organizations, organizations for distributing power and companies that sell electricity to customers. A very specific element of this infrastructure is that there is no storage. Demand and supply must be in equilibrium, else there is the risk that this infrastructure shuts down. Because of these specific properties capacity management must be coordinated between all involved organizations. The electrical power infrastructure is inelastic.
  7. 7. Supply Chain  The IT infrastructure is basically a value stack. A supply chain of stack elements who acts as a service component (People, Process and IT that adds up to an IT service). In this supply chain there are several actors.  In the data center two critical infrastructures, the IT infrastructure and the electricity infrastructure are tied together. The current power grid infrastructure is not flexible and has low energy efficiency.  The current “IT grid” infrastructure has low energy efficiency and poor energy elasticity
  8. 8. DC Supply Chain A data center has, from a power perspective, a supply chain that consists of four large building blocks: the IT infrastructure, the primary power supply (UPS, PDU, etc.), the secondary support supply (cooling, generator, air handling) and the tertiary support supply (lighting, office space). To improve the energy efficiency of existing data centers, as well as making decisions on new data centers there are some metrics being used. These metrics and processes will help determine whether the existing data center can be optimized IT Load Servers Storage NetworkCooling Generator Switchgear UPS PDU Cabling etc. Data center Physical infrastructure Power to data center Power to IT Power path to IT Power path to secondary support In parallel with IT load In series with IT load IT infrastructure Total Facility Power IT Infrastructure Power PUE = IT Infrastructure Power Total Facility Power x 100%DCiE = Useful Work Total Facility Power DCP = Power path to tertiary support Lighting etc.
  9. 9. Supply & Demand Power Generation: 10 years to fix Transmission: 10 years to fix DC Building: 1-5 years to fix IT infrastructure: 1-3 years to fix CO2 emission Capacity constraints Conversion Efficiency Capacity constraints Stranded capacity Capacity constraints Stranded capacity Efficiency
  10. 10. Which Energy Efficiency Are we talking about?  Energy savings; emphasize on (absolute) reducing energy consumption because of the need to reduce consumption of primary energy resources (oil and gas) caused by the Oil Crisis.  Energy conservation; emphasize on (absolute) reducing energy consumption because of the need to reduce consumption of primary energy resources (oil and gas) because they were regarded as in danger of exhaustion.  Energy efficiency; emphasize on becoming increasingly efficient in the usage of energy whilst economic growth can cause continuing use of more energy.  Energy productivity; emphasize on sustainable development because of the scarcity of energy resources and the interest and concern related to climate change and carbon dioxide emissions.
  11. 11. The Effect The effect that increases in energy efficiency raise energy consumption is known as the Khazzoom-Brookes Postulate. As stated by the economist Saunders (1992), this is explained by the micro level in- creases in energy efficiency leading to lower costs of energy, and on the macro level side increases in energy efficiency leads to increased economic growth. The Khazzoom-Brookes Postulate is a special case of what in economics is called the Jevons paradox, increases in the efficiency of using a resource tends to increase the usage of that resource.
  12. 12. The Gap  It looks like that Green IT is more about sustainability and thus energy productivity then energy efficiency.  Considering the Climate change issue, the goal of economic performance instead of economic sustainability looks rather short sighted.  To answer this question we can look at a micro, meso and macro level of this issue or to put it an other way on the level of a firm or organization, the market and society. The gap that exists between actual and optimal energy use rise the question how to define the optimal level of energy efficiency.
  13. 13. Optimize  Micro level - Firm/organization optimum; indicates the amount of energy efficiency that might be expected to occur under current market conditions and market behavior  Meso level - Market optimum; indicates the amount of energy efficiency that can be achieved if all technologies that are cost-effective from a consuming organization point of view were implemented.  Macro level - Social economic optimum; describes the amount of energy efficiency that would be achieved if all technologies that are cost effective based on a social, rather than a private perspective (by taking externalities in to account) were implemented.  Macro level - Hypothetical optimum; represents the maximum amount of energy efficiency that would be achievable through technology diffusion if all technically feasible technologies were used without regard to their cost acceptability of certain stakeholders. To reach one of these energy consumption optimization levels, barriers must be dismantled and be removed. Which kind of barriers must be eliminated depends on the optimum one tries to achieve.
  14. 14. Rationality? A central idea in economics is that in the free market, actors behave selfishly and try in rational ways to reach their goals. This market leads as if by an invisible hand to economic efficiency. The behavior of the actors, and the efficiency and performance of the accompanying markets, should lead to energy efficiency as a function of prevailing prices. Rational decision making requires that the decision maker has all the information he needs and that he is knowledgeable about the consequences of possible decisions. In real life not everything is known, the decision maker is limited by the amount of time and resources he has to make decisions, so rationality is bounded.
  15. 15. Information Asymmetry If all the parties that are involved in a transaction don’t have access to the same relevant information, then we are talking about information asymmetry. This creates an imbalance of power in a transaction. Where one party is trying to motivate another party to act on ones behalf, this is also known as the principal- agent problem and can lead to adverse selection and moral hazard. Bounded rationality, information asymmetry and opportunism leads to strategic behavior
  16. 16. Strategic Behavior  Strategic behavior with rules/policies; parties interpret policies, legislation or contracts in their one gain and act accordingly boundaries.  Strategic behavior with information; parties are selective with sharing information with other parties because they think there is a gain in doing so.  Strategic behavior with prices and quantities; parties setting their services and product prices accordingly to the market power of the other parties.  Strategic behavior with bottleneck facilities; parties abuse their ownership or control of an essential component of a system, through which all service products must pass to reach the ultimate buyers.
  17. 17. Market Failure In some way there is a lack of sufficient incentives to create an effective and potential market in energy for IT, and the nearly nonexistence of this market results in the loss of efficiency in energy usage. This market failure has three aspects:  Externality  Tragedy of the commons  Property rights
  18. 18. Costs  Energy efficiency improvements are burdened with discussions about costs.  In particular, it is a discussion whether all the costs are taken into account for a proper costs evaluation.  There is also a discussion about where to draw the line between transaction costs, switching costs, hidden costs or even production costs.  This forms one of the barriers in the diffusion of energy efficient technologies. A proper overview of all the costs that are involved in diffusion of technologies could help to explain this barrier.
  19. 19. Risk Appetite & Innovation Risk Appetite is the amount of risk exposure that the individual, group or organization is willing to accept. This is influenced by: The used business models and the derived incentives, The (perceived) flexibility of the IT service stack to make switches (interdependencies), The estimation of the (perceived) costs that are involved in making a transition, and The risk of outages when making transitions. If there are uncertainties about risks when using new solutions they will form a huge barrier in the diffusions of new energy efficient technologies.
  20. 20. Yes, we can change  In cutting down energy usage and energy costs, the focus is mostly on technical measurements, but figures show that this is not enough.  There is a disconnection between the environmental sustainability and the economical sustainability.  Applying economic-behavioral analysis to IT energy usage and dependability shows that it often explains energy efficiency failure better.  Systems are often wasting energy because the people who manage them, or who could fix this, have insufficient incentives. Energy usage is for most involved parties an externality.
  21. 21. Optimization level Issues Decision makers Stakeholders Goals Criteria Scenarios Actions Firm Organization Market Social economic Solution framework How much should be spend of efficient energy usage? That depends on which optimum you have in mind. These levels of optimal energy usage can form a framework for solutions. Because asymmetric information leads to many behavioral aspects, the framework must explicitly take decision makers and stakeholders into account.
  22. 22. Organization optimum The issues to be solved over here are more or less technical and procedural coordination issues and motivational issues based on lack of information:  Interdependency of the service stack  Cost management  Risk management The goal to achieve is: Eliminate barriers considered by economists as rational, achieve operational excellence. That is the amount of energy efficiency that might be expected to occur under current market conditions and market behavior.
  23. 23. Market optimum The issues to be solved over here, ask for active interventions and the success rate depends a lot on the actual power the organisation has in the market: Strategic behavior and information asymmetry Split incentives The goal to achieve is: Eliminate market failures, which can pass a cost-benefit test. That is the amount of energy efficiency that can be achieved if all technologies that are cost-effective from a consuming organization point of view, were implemented.
  24. 24. Social economic optimum Issues to be solved over here, because of the (environmental) externality, ask for active interventions of the government in terms of policies and regulations: • Market failure • Strategic behavior and information asymmetry The goal to achieve is: Eliminate market failures, including environmental externalities, which can pass a cost-benefit test. That is the amount of energy efficiency that would be achieved if all technologies were implemented that are cost effective based on a social, rather than a consuming organization perspective (by taking externalities into account).
  25. 25. Read all about it  The book, Greening IT (ISBN 8791936020) aims at promoting awareness of the potential of Greening IT.  The foreword of the book is made by, European Commissioner for Climate Action, Connie Hedegaard.  Greening IT is a international, non- profit, collaborative effort of a group of writers to cover as many areas of Green IT.  The chapter “Why Green IT is Hard - An Economic Perspective” is my contribution to this book.  See