- Smart Solar Panels
- Distributed Marketplace
- Autonomous Battery
- Blockchain Energy Industry: Easy Example
- But what is there is no sun anymore?
Blockchain Energy Use Cases: Household
The electricity infrastructure of a housing society can involve two levels of smart meters. On the first level, there is a single smart meter, that everybody shares in the entire house. The second level consists of home-specific smart meters. So imagine the electricity fee and the grid fee are separated and the electricity market is unbundled. So the people in the house can save money by reducing the number of grid access points through which they operate.
You could also optimize the system on the whole housing society level. It can be self-sufficient and it uses the grid only when needed. It is then possible to open up a local market where peers-to-peers can sell and buy electricity. This structure could also in the future open up for customers to have access to the market, even if they do not have access directly to choose a supplier to their own grid-connected meter.
Blockchain Energy Use Cases: Smart Solar Panels
You have to install a smart solar panel array on the roof of the housing society and it needs to generate electricity. It is important that the solar is free of charge by an external company. So we have the right to sell the electricity produced by the array. Thus, the networked computer chip integrated into the array connects to a distributed peer-to-peer marketplace and generates energy and is powered by blockchain.
Blockchain Energy Use Cases: Distributed Marketplace
The system scans the order book of the distributed marketplace for the highest bid for electricity. The array compares this bid with its investment and operating costs, as well as any price parameters present by its owner. Based on the parameters, the smart array then either accepts the highest bid available or, issues a new sell order at a lower price point. As there are no bids currently in the market, the solar panel array issues a sell order at its lowest acceptable price.
Blockchain Energy Use Cases: Autonomous Battery
So you have installed an autonomous battery unit into the building’s basement to function as a buffer for the distributed marketplace. Thus, the networked computer chip integrated into the battery unit scans the order book and the market transaction history. It then conducts autonomous trend analyses on the demand, the supply, and the market price of electricity.
Based on its analysis on the current market situation, the battery system autonomously decides whether to purchase electricity to recharge itself, to sell its remaining charge back into the network, or to do nothing and to wait for the market situation to develop further.
Blockchain Energy Industry: Easy Example
A person in one of the households decides that he needs to run his washing machine. The machine connects to the distributed marketplace and scans the order book for any open sell orders. In our example, it sees three entries in the order book. It can see a sell order from the grid at a spot price, a sell order from the solar panel array currently, and a purchase order from the battery unit. The last two are currently being matched at steady intervals by the matching engine of the distribution marketplace.
So the washing machine issues a new purchase order. To cover some of its loss, it makes sense for the solar panel array to accept the battery system’s offer. It accepts the offer even if the solar panel array is making a loss on the trade. The solar panel sees the bid, stops its arrangement with the battery and starts supplying the washing machine instead. The battery responds by raising its bid until it reaches its self-determined limit of profitability. If the highest bid is still below the spot price of the grid, the washing machine bids one unit higher than the battery’s threshold. Thus the solar panel keeps allocating its electricity to the washing machine at a market balance price.
But what is there is no sun anymore?
The sun has set and the solar panel array has stopped producing electricity. Due to some heavy consumption in the evening, the battery unit is also empty. Another person in the house parks her electric vehicle into the garage of the building and connects it to a charging station. So the computer of the electric vehicle scans the order book and the transaction history of the distributed marketplace. Thus, it does this to conduct trend analyses to assess the current market situation for electricity in the housing society. The computer determines that the vehicle’s batteries are still half full and that the battery has been charged at a lower price than the current sell orders in the market.
So based on trend patterns, the computer also decides that the price of electricity will decrease in the morning. That´s because the solar panels start producing electricity with the rising sun. Therefore, the electric vehicle issues a sell order for the remaining energy left in the battery, at a lower price than the current market.
There are a lot of ways you could build a marketplace for exchanging electricity between households and smart devices. So the simplest way to organize the marketplace would be to employ a centralized third party as the trusted market maker.
But in terms of trust, scalability, and compatibility, there are a lot of benefits that a distributed system provides. So a centralized solution might be more logical from the perspective of any single housing society. But the purpose of utilizing a distributed solution in this small-scale proof of concept is to enable network integration. It should be between smart devices where a lot of houses can maintain a transaction market system together in a shared fashion.