AS Per URL : https://powerbi.microsoft.com/en-us/documentation/powerbi-frequently-asked-questions/
Is Power BI available on-premises?
No, Power BI is not available as a private, internal cloud service. However, with Power BI and Power BI Desktop, you can securely connect to your own on-premises data sources. With the On-premises Data Gateway, you can connect live to your on-premises SQL Server Analysis Services server, and other data sources. You can also scheduled refresh with a centralized gateway. If a gateway is not available, you can refresh data from on-premises data sources using the Power BI Gateway - Personal.
You can also view on-premises SQL Server mobile reports with the Power BI iOS apps:
1. According to this It Will not work in an Intranet Environment or without cloud service. Am I right?
2. From Mobile there is two options 1) Connect to Power BI 2) SQL Server 2016 Reporting Services. what deoes this means to connect SQL server 2016 Reporting Services?
3. I want to use Power BI dashboard without Online or without internet. Is it possible?
Please Reply above 3 Regards,