This post discusses a module that adds support to index multiple view mode renderings on an entity. In addition the author mentions an example at Prudential Gallo REALTORS where they store data in Solr, indexing view modes for both the real estate and rental entities. The search results are indexed view modes, for both the desktop and the mobile site, bypassing the need to have Drupal to anything more than construct and send a request through SearchAPI to Solr.