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Note on the Data Quality and Authenticity:

The information and maps in this atlas is suggestive and should be considered only indicative of the reported quantities though care is taken to enhance the precision of reported data to a significant extent that has many constraints. The data to a large extent is derived information based on fuzzy processing. It is therefore cannot be considered as either authentic or representing high spatial accuracies. Please see the detailed note on the method of approach in the generation of atlas.

Disclaimer on the Accuracy and Authenticity of Data and Information:

The information available from this National Biomass Resource Atlas, published from the servers at CGPL, IISc or MNRE does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or loss of accuracy on any information, product or process disclosed. CGPL, IISc does not endorse or recommend any commercial products, processes, or services. The views and opinions expressed on the website CGPL, IISc may not be used for advertising or for endorsement or for certifying purposes.

Detailed Note on the Method Adopted in Generation of the Atlas:

1. The biomass produced is an estimate based on the Remote Sensing Data and other statistical ground data (largely governmental, supplemented by data from others – at gaps in this source) and has gone cycles of verification, validation and checks for consistency. However, with the varying quality of the inputs at different regions and also the varying heterogeneity of the biomass distribution, the estimated figures for the biomass production are known to have an error band of 5% to 25%.

 2. The biomass utilization pattern reported is based on the survey reports conducted at district and taluk level surveys sponsored by MNRE (Ministry for New and Renewable Energy), GOI (Government of India), conducted by a set of consultants and monitored by a set of apex institutions and reviewed and consolidated by a National Focal Point (NFP) at CGPL, IISc during the years 1999-2003. Several factors play role in this data as sources of error that include the degree of inconsistency inherently built-in in the survey system limited by local factors of human communication that forms the basis for the data. The usage pattern itself being divided in to social and commercial activities becomes debatable parameter for deciding the socially uncommitted fraction of the biomass available for other uses like power generation. The other important parameter is that over a period of time the pattern of biomass usage may change due to various reasons, one of which could also be biomass based energy generating installations. A frequent survey for these factors is not probably workable due to the costs involved. The usage patterns reported for the subsequent years in the atlas are assumed to be unchanged from the previous studies, though the reported major biomass consuming industries are mapped. The reported biomass utilization is attempted to be conservative with the elimination of socially contributing factors and other local known constraints as utilizations that cannot be disturbed. In view of these factors, the projected data on the utilization is expected to have errors in the range of 20% to 40%, depending on the local and social conditions of the region.

3. The biomass surplus projected is the differential quantity between the biomass production obtained as in the point 1 above and the usage obtained by the approach mentioned in the point 2. In view of these aspects, it is important to note that the biomass surplus cannot be an assured quantity of high reliability for an entrepreneur for a safe assumption for putting up an energy generation plant. It is expected that data from the atlas could be used for a feasibility basis and a true survey in the area of interest be conducted with all the critical factors mentioned, before a new venture is taken up.

4. It is also important to note that application based biomass usage has a higher practical view point. It is generally understood that for thermal applications, the replacements are in general for the fossil fuels, the cost of biomass procured could reach one fourth or one fifth of the fossil fuel price, still meeting the economics of running the plant. The electrical power generation, more specifically if grid-linked ESCOs (Energy Service Companies) have a constraint that the selling power being fixed and thereby the procurement price for biomass has to be much lower than its thermal counterpart applications. In view of this, it is to be verified that biomass fuel is not in ‘demand’ by the thermal systems to put up an electrical plant using biomass. These factors are not derivable either by a RSD (Remote Sensing Data) or a static survey and are governed by the local conditions. In view of this the study and survey to be conducted before taking up a biomass based electrical power plant is considered mandatory.

 5. It is made explicit that the entrepreneur or the user of the information from the National Biomass Resource Atlas is expected to exercise caution before using it for any decision making, reporting and/or certifying, taking note of the points mentioned above. It is emphasized that they should adopt other guidelines (if available) from respective local governing agencies and/or get an assessment made by a qualified team before any activities with financial implications are taken up. 6. It is also made explicit that CGPL, IISc or MNRE, GOI could not be made responsible on the accuracy of the data and/or information from the Atlas available on their web-site. All the reports and extracts of data or information from the atlas should be cognisant of the disclaimer note made towards this.