I think that currently, one of the fastest ways to spread the idea and demand for clean energy is to offer clean temporary welding power, clean temporary construction site power, and later (because they take longer to develop & set up manufacturing) clean tractors and trucks (the latter two being something that Tesla Auto can and is getting into eventually, so I'm focusing right now on Tesla Energy's stationary storage concepts). Once construction workers feel the difference of clean energy, they will want more. The thing is, many construction workers are just fine ingesting the fumes of diesel welder generators, diesel temporary power units, diesel tractors, diesel trucks and other equipment that puts out horrendous polluting fumes. But, the headaches, sicknesses, and airflows would be a lot better without all of those sicknesses wafting around the construction site, clouds of pollution often getting caught in the eddies of the buildings being constructed. Most of the men on construction sites are very hardy, so the impact will happen slowly from a day to day perspective, but look at its outcome: incrementally, they will like the idea of not getting a headache or sick from the temporary welding power sources and temporary electricity power units with their clean energy, and over the time span of years, a huge proportion of construction sites would switch over pretty quickly, especially in high density areas like we have in urban parts of California where it's often hard to site clean positions for fossil fuel equipment, incidentally pretty near your Nevada factory and your California offices and sites. Your advertisements to them shouldn't be over the top. Already, many construction workers and planners know of these issues. They have just been resigned to use the options available to them. If you offer a competitive option for welding and temporary power units, then they will be able to try them out, and if it is done well enough, they will come to like it. The idea of clean energy would spread like wildfire, yet for the cost of only a small portion of the total installed base of energy users. Free market persuasion among a large number of the most hardy men would spread naturally throughout California, North America, and the World in ways that you probably would struggle to meet the demand; if you are ready, you could grab a huge market share and propel humanity into the new clean age once and for all. Successful execution I think probably is best to be along those lines: at first, you can help service the local construction companies by delivering recharged batteries with a tiny fleet of electric trucks (hand-made to get them into Tesla Energy's fleet ASAP, enough to service every construction site in the state eventually); make certain the energy equipment is construction site tough, and can withstand the usual pushing around by tractors, dirt, dust (construction dusts as well as dirt), chemicals (concrete, epoxies, water, acids, etc.) being spilled on them, vibrations, mistakes, you name it; make them easy to handle, not tip-worthy, sufficiently easy to understand (a hard working construction worker doesn't want to spend time handling overly difficult machinery, and some even don't want to deal with any difficulty at all, so if you have opportunities for making it simpler and/or minimizing diffculties, take them); and finally, make certain they are specified for the maximum duty needed. The competition is mature, as you probably already know, with lines of huge MQ and other generators spotted down the side of your SpaceX hyperloop test tube on Jack Northrop Avenue, and other sites. I'm sure you've seen them. Especially the MQ's but many of them are quiet, powerful, and relentless. Even more demanding are those welders: they apply huge amounts of arcing energy for welding equipment, not exactly grid-friendly. That's a whole engineering feat itself. But, I think all of these things could be done, in a competitive manner, with the right electronics and your wonderful Gigafactory 2 output. Be ready, make it happen, and the world of clean energy comes washing in!