The Michigan Biomass Inventory is an interactive screening tool that allows users to:
Change Layer Transparency:
No Results to Display
Select a county from the drop-down list and click the "Zoom to County" button and the map will zoom to the desired county.
Select a City or Township from the drop-down list and click "Zoom to City/Twp" button and the map will zoom to the desired City or Township.
Type a search term and click the "Biomass Search" button and the Search Results Tab will display all biomass sources/facilities that match the search term in the Search Tab. Note that the search is a "like" search, so any facility names containting the search term will be returned.
To zoom to a selected facility, click on the row that corresponds to the appropriate facility in the Search Results, the map will zoom to the desired facility. The selected facility will be highlighted in yellow.
A map layer represents a distinct GIS (Geographic Information System) data layer. Map layers are grouped into map services and are displayed in the Map Layers Table of Contents for the user to interact with. The Map Layers Table of Contents allows you to turn map layers on/off, select the active layer, view metadata about a map layer, see the symbols for biomass sources/facilities, and change the transparency of a map service.
There are three map services or groupings of map layers that you can interact with: Biomass Sources, Environmental, and Other. The Biomass Sources map service is an inventory of potential biomass feedstocks that could be utilized for energy production. The Environmental and Other map services complement the Biomass Sources map service by providing map layers that may indicate to the user areas that would not be suitable for some types of energy production activities from biomass feedstocks. The user cannot interact with these map services other than to turn them on/off and change their transparency.
To make a map layer visible, make sure the checkbox next to the map layer name is checked. Also, the checkbox at the root of each map service determines whether any map layers will be visible or not.
To change the transparency of a map service (a grouping of map layers), select the map service from the drop down list and move the slider accordingly.
The Biomass Sources map service is the most important map service in the application and the map service that the user will interact with most often.
As compared to the other map services that are displayed in the Map Layers Table of Contents there are additional ways for the user to interact with the Biomass Sources map service. The user can select the active layer, view metadata about a map layer, and see the symbols for biomass sources/facilities. To select the active layer, click on the map layer name. The active layer is the layer that the graphical selection tool operates on. To view metadata, click on the metadata icon and the metadata will open in a new window. The symbols for each of the biomass sources/facilities are displayed next to their checkboxes so you can tell what type of biomass source/facility a feature on the map symbolizes.
Backdrops provide background information about a geographic location while still allowing you to view the locations of biomass facilities/sources.
To change the current backdrop click and select the desired backdrop.
You cannot interact with backdrops, other than turning them on/off.
The backdrop choices are:
Crop Data Layer Legend
The Map Tools allow you to move around on the map and zoom in and out.
To expose the Map Tools click next to the text "Map Tools" and the Map Tools will slide into view.
To hide the Map Tools click .
Zooms in on the map. Click and draw a box where you want to zoom to on the map.
Zooms out on the map. Click and draw a box where you want to zoom out to on the map.
Zoom To Full Extent
Zooms to the full extent of the map. Click and the map will zoom out to the full extent.
Zoom To Previous Extent
Zooms to the last viewed extent, if available. Click and the map will zoom to the last viewed extent.
Zoom To Next Extent
Zooms to the next extent in the list of previously viewed extents, if available. Click and the map will zoom to the next extent in the list of previously viewed extents.
Pans (navigates) the map. Click and click on the map, hold the left button down and drag the cursor to the location you want to pan to.
The Selection Tools allow you to view information about biomass facilities/sources.
To expose the Selection Tools click next to the text "Selection Tools" and the Selection Tools will slide into view.
To hide the Selection Tools click .
Selects and displays information about biomass facilities/sources. Click and draw a box around the features you want to select.
Information about the selected features will be displayed over top of the map. Only one map layer from the Biomass Sources map service can be selected from at a time.
To change the active layer (map layer that selection operates on), click on a map layer name and it will be highlighted in blue.
To zoom to a selected feature, click on the row that corresponds to the desired feature and the map will zoom to it.
Clears any highlighed features (graphical selections, biomass source search results, biomass analysis buffers, identify information windows) from the map as well as the Search Results Tab and the Selected Features panel. Click and any selections will be cleared.
Displays information about a biomass source/facility. This information commonly includes the name of the facility, type of facility, and quantities of biomass available at that facility. To perform an Identify on a biomass source/facility, click and click on a biomass facility/source on the map. An information window appears over the map displaying the associated biomass facility/source information. Results will be displayed for any biomass source/facility within the immediate area of where the user clicked.
Click to close the Information Window.
Using the Biomass Sources and user editable analysis options, the Biomass Analysis Tool generates estimates of net energy available from conversion of biomass feedstocks to electrical or heat energy or conversion to Ethanol.
The result of the tool, is a printable (through the user's web browser) report that includes estimates of the net energy that could be generated if biomass conversion technologies were located at the user indicated location.
To use the tool, click , click on the map at the desired location and the Biomass Analysis Tool user dialog appears. The dialog displays site information about where the user clicked, such as the county, city or township and latitude and longitude coordinates. To perform the biomass analysis the user must click within the state of Michigan and outside any bodies of water.
The Biomass Analysis Tool uses a step by step process collecting information from the user that will be factored into the analysis. The process either must be completed or the dialog closed before the user can return to interacting with the map and the rest of the website.
To view information about the conversion formulas used in the analysis click here. To close the Biomass Analysis Tool user dialog and refresh the page, click . To close the Biomass Analysis Tool without refreshing the page click the Cancel button.
The first step allows the user to configure the inputs to the Biomass Analysis Tool. These include conversion technology, type of energy output, buffer distance, and whether to include transportation cost in the analysis.
The conversion technology options include Anaerobic Digestion, Gassification, Direct Combustion, Biodiesel, and Ethanol. Technical information about the conversion equations used to generate estimates of net energy can be viewed here.
The user has the option of choosing the type of energy to generate, either heat or electricity for all technologies except Ethanol.
The buffer distance is the radius in miles of a circular buffer around the point that the user clicked. This area constitutes the biomass analysis area and all biomass sources/facilities within this buffer will be included in the subsequent analysis. The default is 25 miles.
Transporation cost is the amount of energy expended to transport biomass feedstocks within the biomass area to the point that the user clicked. The transportation cost is calculated by performing a routing analysis from each biomass source/facility back to the point the user clicked on. Transporation cost is subtracted from the result of the energy conversion equations to estimate net energy. Including transportation cost as a parameter to the net energy calculations is computationally expensive, so the user should expect considerable processing time if the option to include transportation cost is checked.
After clicking Next on Step 1, the Biomass Analysis Tool selects all biomass sources/facilities that are within the user specified buffer distance and provides a preliminary estimate of net energy.
The name of each biomass source/facility (if the user is authenticated) is displayed to the user along with a preliminary estimate of net energy. Non-authenticated users will not be able to view the names and addresses of sensitive biomass facilities/sources. Instead the text "Restricted" will be displayed to indicate information that is not available to non-authenticated users.
There are four types of information that are presented to the user at this stage in the analysis:
Biomass Source Layers
The Biomass Source Layers are the Biomass sources/facilities used in the net energy calculations. These locations generally have an associated quantity of biomass available and an equation used to generate a net energy estimate. The types of biomass sources include discrete facilities (CAFOS, correctional facilities, hospitals, schools, universities, and water treatment plants). Also, for some conversion technologies, the available biomass sources include the agricultural potential based on the theoretical yield of cropland residues (corn stover, wheat straw) and cropland energy crops (corn grain, switch grass).
County Ag Census - Biomass
The County Ag Census biomass source includes an estimate of the net energy available from the manure produced by cattle, chickens, dairy, sheep and swine within the county the user clicked in. Note that this is a county-wide estimate and is not restricted to the potential biomass within the biomass analysis area. The county-wide manure quantaties are derived from the National Agricultural Statistics Service Census of Agriculture (Ag Census).
Points of Interest
Points of Interest are potentially significant sources of biomass for which quantaties of biomass and/or energy conversion equations are not available. They are included for informational purposes only and are not used in the biomass analysis.
Possible Site Restrictions
Possible Site Restrictions are limiting factors that may prohibit the installation of biomass conversion technologies at a given location. Total population/population density provides an indication of the feasibility of locating biomass conversion technologies in a specified location given the potential conflicts between biomass conversion/energy generation activities and the public (noisy trucking of biomass materials, foul smell from anaerobic digesters, etc.). It is the user's responsibility to determine at what population levels, biomass conversion technologies would be unsuitable for a given location.
Water availability from glacial deposits and bedrock aquifers may indicate areas that are not suitable for growing biomass energy crops such as switchgrass. It is the user's responsibility to determine if and at what level water availability from glacial and bedrock sources is a limiting factor in the cultivation of biomass crops.
The third step returns the results of the analysis to the user, taking into account any changes made in Step 2. The analysis results can be reviewed before generating the Biomass Report in the final step.
The fourth step gives the user the opportunity to generate a map and report with detailed net energy estimates. The report can be generated either with or without a map by checking the Include Map in final report checkbox. The report will open in a new browser window and will be printable through the browser's print menu.
Biomass Documentation. The user guide helps navigate through the Michigan Biomass Conversion Spreadsheet and includes how to use the interface, input data, interpret output data, change variables within the model, print results, and provides literature sources. User Guide The spreadsheet can be used for conversions of biomass to energy for anaerobic digestion, combustion, gasification, biodiesel production, and ethanol synthesis. Energy Spreadsheet The feedstock evaluation data contains a biomass inventory of categories ranging from acid food to manure. Included are raw sample characteristics, the impact on biogas generation, and the maximum percent of methane produced. Feedstock Evaluation
Biomass Sources Selected Features