HI, Talking about energy sector, we have got experience with the following clients :: - Wipro Ecoenergy - vortecy energy - GridRX - Gridpoint A plethora of tools were used with these clients which consisted of Jaspersoft, Pentaho, SQLlite, Postgres, InfiniDB, OpenWRT, Pentaho, Google maps, DGLux, Lucy, R analytics, Mango M2M. We have got a lot of experience in energy domain. Based on our experience of providing services in the domain, my article on energy efficiency, usage of BI tools in energy domain was published on a leading website. http://www.sustainuance.com/business-intelligence-in-energy-efficiency/ Also there is one more blog written by me on energy efficiency which might prove helpful http://helicaltech.com/blogs/business-intelligence-in-energy-sector/ Pricing Editions : Leading Open source BI software like Jaspersoft and Pentaho come with their own Community version and Enterprise version. Based on your budget and requirement, a good solution can be choosen or even a best of breed solution can also be used. To know about the capabilities which the Jaspersoft CE provides and Pentaho CE provides, please have a look at the blog http://helicaltech.com/blogs/jaspersoft-vs-pentaho-which-one-to-use-is-there-any-need-to-purchase-commercial-edition/ Jaspersoft capabilities : Jaspersoft can provide end to end BI capabilities which includes data visualization, reports, dashboards, embedding BI into your website/software/application, fetching data (data profiling/data filtering/ data integration/data mergin etc) using Jasper ETL, reporting can be web based, analysis and analytics (R tool), adhoc reporting, OLAP cube, white labelling of the solution, SSO implementation etc. Helical IT Solutions is an open source DWBI company having experience on Jaspersoft, Pentaho, Talend, Kettle, Data warehousing, Data visualization etc We have got experience of implementing BI solutions in Human Resource, Energy, Social Media, Insurance, Telecom sectors. Please get in touch with me at nikhilesh@helicaltech.com.