The present invention generally relates to the field of emissions or resource management, such as greenhouse gas (GHG) emissions management or energy usage management. More specifically, the invention describes a modeling method, performed by a processing system, that combines various reduction initiatives, out of a larger group of initiatives, to achieve the client's reduction goal within a certain budget and time frame.
“Emissions” refer to the introduction of chemicals, particulate matter, or biological materials into the atmosphere, ground, or water system that potentially can cause harm or discomfort to humans or other living organisms, or may damage the natural environment.
GHG is a collective term for gases such as carbon dioxide, methane, HFCs, SF6, and nitrous oxide that trap heat in the atmosphere and contribute to climate change. GHG accounting and reporting is the discipline of tracking GHGs produced as a result of executing business processes, including manufacturing, travel, keeping of livestock, etc.
The term “carbon dioxide equivalent” (CO2e) is a common normalized unit of measurement, such as expressed in tonnes of CO2e, that is used to compare the relative climate impact of the different GHGs. The CO2e quantity of any GHG is the amount of carbon dioxide that would produce the equivalent global warming potential. There are publicly accepted factors that are used to convert an entity's emissions, usage of resources (e.g., electricity, gas, oil, coal, etc.), or waste products, among other things, into a CO2e emission.
A company or other entity may want to, or be required to, reduce their CO2e emissions or energy usage. For example, a company's CO2e emissions may be capped by a governmental or industrial organization within an established time frame. A company may wish to reduce energy consumption simply to save money.
It is a complex task to evaluate the effects of one or more initiatives to lower a company's emissions or energy usage to meet their target or cap, especially when the company has a certain not-to-exceed budget and the initiatives may have different implementation dates. An initiative may be a single activity or project having a definable cost and energy/emission reduction per year.
What is needed is a technique to aid a decision maker in deciding which reduction initiatives to implement to meet the company's target for emissions, energy usage, or other goal within given constraints, such as a budget, and to meet the company's other objectives.
In one embodiment, a modeling system is implemented via a host server that is accessible to a large number of clients (organizations) using a website. In the example given herein, it is assumed a client wishes to reduce its CO2e emissions by reducing energy consumption, where the reduction in energy consumption is converted into a reduction in CO2e emissions by applying a conversion factor.
The host server generates a menu-driven website providing the client many options. Only the modeling option relating to the present invention is described herein. Once the client has selected the modeling option of the software program, the client is requested by the website to input certain information needed for the modeling.
The client selects a name for the overall reduction strategy, such as “Facility Measures.” This refers to physical modifications to the client's facility to achieve the reductions. The name may be selected from a group of names provided by the server. The client then provides a short description of the strategy or goal, such as “Energy Reduction Project to Reduce Electricity Consumption By 3300 MW-Hours Per Year.” The client then enters a budget, such as $1,000,000.
Based on the general category of the reduction strategy, the server may present a list of possible initiatives that the client can implement, where any of the initiatives can be combined to achieve the client's goal. Each stored initiative is associated with many algorithms for calculating, for example, the cost of the initiative, the cost savings due to energy reduction, the payback period, the energy reduction per year, and the CO2e emission per year. The client then customizes any initiatives of interest by identifying the facility's area, requirements, facility type, budget/cost for the initiative, time frame for implementing the initiative, personnel responsible for the initiative, energy or fuel usage reduced or increased by the initiative, and any other factors affecting the initiative. The client may also create its own initiatives and enter all required information about the initiative. Other initiatives that may be available to the client may be initiatives created by other users in the organization and stored in the server. There may be dozens of initiatives that are possible to implement to reduce energy consumption.
The client now needs to decide which combination (subset) of initiatives to implement to achieve the target electricity or emissions reduction using the specified budget.
The modeling software allows the client to rank each initiative with respect to various objectives (e.g., save money, improve company image, etc.) identified by the user or server. The objectives may be individually weighted. The server than calculates the overall rankings of the initiatives based on the total weight of each initiative.
The server then displays, such as in a spreadsheet, all the initiatives of interest in their ranked order along with all the information the client needs for selecting an initiative, such as the cost of the initiative, the cost savings due to energy reduction, the payback period, the energy reduction per year, and the CO2e emission per year.
The client then selects any combination of the initiatives, and the software then identifies to the client (in a graphics representation) the effects of the combination in achieving the client's goal and the total cost of the combination. For example, the server may display to the client the total energy savings per year and total CO2e emission reduction per year using the combination and any budgeted amount remaining. The client can repeatedly change the combination in an attempt to achieve the maximum reduction for the budget. The software can also identify any other information about the effects of the combination, and the client can customize the modeling to display all information of interest to the client.
The software may also determine the optimal combination of initiatives to achieve the target reduction at the lowest cost or the largest reduction for the budgeted amount.
This modeling technique can be applied to many other types of resource usage. For example, the modeling can be applied to initiatives that directly reduce emissions, rather than reduce resource usage.
Although the server 12 has many functions, and there may be a plurality of servers, only one server and its software routines related to the present invention are illustrated. The programs illustrated are algorithms 18, 20, and 22. The algorithms 18 are for generating the menu-driven display and related functions. The algorithms 20 are for customizing the various initiatives based on the information entered by the client. In the example of a client desiring to model an energy reduction strategy to reduce costs and CO2e emissions, the algorithms 20 include algorithms for deriving the customized initiatives' costs, cost savings, payback period, anticipated energy reductions, and CO2e emission reductions. The algorithms 22 include algorithms that combine the selected initiatives together to display to the client the effects of the combination in achieving the client's goal, including meeting the budget. The client can select the particular modeling information to be displayed on the website.
In step 32, the client enters a short description of the reduction goal (in this case, an energy reduction). In
In step 34, the client enters the budgeted cost for the project, such as $1,000,000, and enters a time range for the analysis, such as 2009-2013.
In step 36, the client identifies all possible initiatives for carrying out the overall strategy of reducing electricity by modifying the facility. An initiative may be a single action or project that has a quantifiable cost, an associated energy or emission reduction per year, and a completion date. The customer can select any number of the possible initiatives offered by the server 12 that seem reasonable to the client, or the client can create its own set of initiatives.
In step 38, the client customizes each of the initiatives of interest by entering information about the initiative, such the facility size, number of employees, facility type, requirements, budget/cost for the initiative, time frame for implementing the initiative, personnel responsible for the initiative, energy or fuel usage reduced or increased by the initiative, and any other factors affecting the initiative. The client may also create its own initiatives and enter all required information about the initiative. Other initiatives that may be available to the client may be initiatives created by other users in the organization and stored in the server.
In step 40, the server 12 then uses its pre-programmed conversion factors, pre-programmed baselines, and the client customizing information to calculate, for example, the cost of each initiative, the cost savings over the time range, a payback period, energy reduction per year, and CO2e reduction per year. The client may identify to the server what metrics to display for the modeling. The client may instead provide all of the information about an initiative rather than have the server 12 calculate the information. The client may also override any default results calculated by the server 12.
In step 42, the client ranks all the initiatives of possible interest with respect to various objectives the client has identified.
The client then ranks the initiatives for each of the objectives (step 42). The ranking can be ordering the initiatives from best to worst or assigning a scale of, for example, 1-10 to each initiative for each objective.
In step 44, the server 12 then applies the weightings to the client's rankings of the initiatives and creates a ranking of the initiatives based on the total weight of each initiative. The calculations performed by the server 12 are shown in the table of
In step 46, the server 12 creates a spreadsheet, such as shown in
Cost savings may be automatically calculated by multiplying the energy savings by the cost per kwh. Various conversion factors for calculating energy or emissions reductions may be based on publicly available conversion factors, or the conversion factors may be originally developed by the server 12 using information from the client or all clients. The client can optionally fill in these values.
Initially, all the initiatives are listed under the heading “Draft” in
In step 48, the client then clicks on (using a mouse) a box next to any number of initiatives in the “Draft” section to select that combination (a subset) of initiatives. In response to the selection, the server 12 revises the charts shown in
If the client, based on the modeling in
Any type of graphic may be used for the modeling, and
The cost savings chart may additionally take into account the amortized cost of the initiative.
The client then has all the information it needs to evaluate whether the “Approved” combination of initiatives meets all the goals of the strategy for the budgeted amount. If the result is not adequate, the client may uncheck any initiatives in the “Approved” section and clicks the icon “Back” to move the unchecked initiatives back into the “Draft” section.
In step 50, the client can accept the current “Approved” combination or select a different combination of initiatives. If a different combination is selected, the server 12 recalculates all the information shown in
All information is saved by the server 12, and the information can be formatted to provide other useful tools for implementing the initiatives, such as detailed progress goals, cost schedules, responsible personnel, accounting, etc. The time divisions in the various charts may be accounting periods and not necessarily calendar years.
This same type of scenario modeling can be used where the goal is a specified emission reduction (including gaseous or solid emissions) or other goal. The client may be offered, via the website, various units of measurements to select from, and the server 12 algorithms apply the associated conversion factors for generating the modeling feedback for the client.
While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects and, therefore, the appended claims are to encompass within their scope all such changes and modifications as fall within the true spirit and scope of this invention.