it's one of the significant things in our irp process.ou can see that with the chart up on the screen. the segments of the pis is battery storage. and light purple segments represent the longer duration energy storage. >> my last question, one of the things that commenters suggested was- >> connect local sources of energy production like solar panels. with demand often times it includes battery storage. it has its own dedicated distribution to allow the grid to operate independently of the larger grid, the macro grid, you can think of it. that's a micro grid in a nut shell. they can include-typically they include multiple end use customers. you might connect a block together. or a few buildings that are locatessed next tlocated next t. the principle benefit of a micro grid is the ability to continue to operate when the larger grid is no longer providing service in an outage. they are not bad. they are a solution that does really require very localized analysis. customer analysis. one last comment on that. i want to say they can be pursued