For a 50 year solar + hydrogen project, a doubling of amortized energy costs occurs at interest rates of -0.4% (rate possible in Germany ), 2% (Above current US rates, and most other countries), 6.2% (lower than typical risk capital), 13.7% (higher than most sound projects). This means that if amortized loan payments for a project at 2% interest rate generated electricity costing 2c/kwh, the same project generates costs of 1c/kwh at -0.4%, or 4c/kwh at 6.2% interest rates. A 0% interest rate would be amortized at 2%, and result in a 1.25c/kwh project cost.
|NMC cycle life as affected by depth of discharge|
- Standardize on 120V DC current (or voltage of common AC current in your region)
- #2 gauge wire(s) costs $15-$20/meter. Will carry 9.6kw 56 meters with 5% power loss. Doubling/halving distance or current will double/halve those losses.
- Neighbour that would need to receive net power from a solar generating neighbour would offer to pay for connecting the 2 points/homes.
- A meter would be placed at generator's home to tabulate net energy transferred. Connecting/paying neighbour may choose any wire size they wish but pays for energy before line losses.
- Base pricing can be model based around seasonality, weather, time of day, where guaranteed production percentages are made available to importer, and guaranteed minimum purchases are promissed to generator. A mechanism to adjust access and minimums with long term notice. Outside of those parameters, market (bid-ask based) rates would apply. Computers on each party's behalf manages trade based on consumption patterns and each side's battery capacities/charge rates.
- Solar generating buildings may receive connections in 4-8 directions to neighbours.
- A net importing neighbour can receive a connection on the other side of his main connection. That new connection becomes the first importer's “customer”. First importer can set a fixed profit spread on 2nd importer's consumption, and to handle times of scarcity, the first importer can guarantee that at least 50% of energy transferred at 2nd importer's bid prices are passed through.
- 3rd importers would connect to 2nd. As customer of that 2nd.
- As strings of connections get longer, anyone part of that string will see the proposition of installing their own solar generation more attractive, as it supports lengthening the string length and profiting from sharing.
- When “strings” emanating out of generators meet/become adjacent, it is to both of those neighbours advantages to connect to each other in order to diversify their supply routes, including the potential to profit from energy trade in the opposite direction of their main/initial supply source. Which side pays and which side controls the meter is a matter of negotiation, but the side with the “official” meter paying for it as a minimum offer is a good starting point. If both sides want the meter, then the negotiation becomes balancing paying for the wire and smart contract terms for trade/spreads between the two points. Adjacent neighbours may wish to help subsidize/assist connecting “strings”, or offer to jump over obstinate neighbour, as they also benefit from supply diversification.
- An urban solar production facility, under this scheme, has the capacity to deliver 20kwh over 4 hours to points 112m from any of its edges at 5% loss. 224m at 10% loss. Much more power delivered to closer points (allowing them to share with further points). Any partial solar production or batteries along the route extends the delivery amount and time window and practical distance. Where an urban/suburban environment can be modelled as a chess board with 20m-side squares (400 sq.meter properties), 8 25 square chessboards can be placed around a large generator, each consuming an average 5kw. 1MW of solar distributed through the super chessboard. This power is almost sufficient for Canadian winters, but its massive in summer. More generation throughout the square is useful, as are fuel cells to meet winter peaks/resiliency at high rates for that power. The exact same dynamics that have been described for single home resiliency apply to “chessboard peer to peer” microgrid. Surpluses need to be diverted to electrolysis.
- Incumbent utility can participate in microgrid, offering no-monthly fee crypto settled connections (that are likely already in place) to any single member of the chessboard, and doing bidirectional trade with that/those member(s) and serving far away generators and customers to help smooth out any surpluses/deficits in a wider region.