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If decentralized generation is going to work, what we deperately need is the intrastructure and market to let the decentralized nodes to make meaningful decision about power use. Say start charging home based on accrued based demand, usage, credit for production defering of demand, and load balancing capabilites. A system that can predict usage and tack intellegent action. (Tommorow's going to be really cold, so this house will take X power to heat, and the solar will make A power over Y time, and the local wind farm isn't going to prouce much tommorow so wholesale prices are projected to be fairly high, it's pretty cheap right now so lets fill up the battery bank) (Later that evening... prices aren't going down, let's poll the nieghbors to see if we can justify spinning up block's combined heat-power unit.) (Get ready to start the laundry? you can see the projected cost for that load
For now pick two: cheap, robust, distributed
Because the format is designed to be mostly append-only you should be able to skip over most corruption in the reader, and the writer should rotate the log file if any corruption is found. Additionally there is a mechanism that lets you know with high certainty weather a section of the file has been corrupted since it was tagged. "Tag objects are used to seal off the journal for alteration. In regular intervals a tag object is appended to the file. The tag object consists of a SHA-256 HMAC tag that is calculated from the objects stored in the file since the last tag was written, or from the beginning if no tag was written yet"
Systemd actually brings back a old favorite feature of Unix. multiseat computing, you can have a single high-end computer drive 2-4 seats instead of a low-end driving a single seat, saving money and reducing wastes at the intitutional level.