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CONTEXT: Net metering regulation, such as the one introduced in Brazil (No. 482/2012), unlocks vast commercial potential for decentralised small-scale photovoltaic (PV) electricity plants. Businesses and individuals can acquire stakes in solar pannels, and use crypto tags attached to mechanical meters to track electricity production and consumption on per-customer basis.

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STATUS QUO

Change in the customer buying/renting stake in the PV panel requires physical moving of the meter and re-provisioning of data in legacy systems.

LIMITATIONS

• Additional use of time and labour resources
• Costs are born by the energy company
 

RIDDLE&CODE SOLUTION

Attach provisioned tamper-proof crypto tags to existing mechanical meters. Provisioning of the tag involves linking of the tag to the customer agreement and creation of the public key conveyed into the QR code printed on the tag. Customer then performs 'digital meter association' by taking a picture of the QR code and the meter to which the tag is attached and entering meter reading on Day 0. This information is stored on the blockchain backend.

BENEFITS

• Consolidates the digital identity of the meter and the customer
• Flexibility/scalability: meters could be easily re-provisioned by the customer
• Increases efficiency of customer-related processes (connection to the meters, change of ownership, etc.)
• Verification of the meter (smart and/or regular) can be performed with any device, e.g. smartphone

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STATUS QUO

Energy distributors use their existing legacy IT infrastructure to handle transition to net metering process
 

LIMITATIONS

• Additional functionality puts pressure on the legacy system
• Interconnectivity issue – different parties involved in energy production, energy transmission and energy consumption

RIDDLE&CODE SOLUTION

Net metering process (netting between energy produced and consumed) is seamlessly integrated into legacy systems with additional processes handled on blockchain. On a monthly basis customer submits meter reading and settlement process is immediately effected via smart contracts. Customer receives an invoice with net metering calculations.


BENEFITS

• Alleviates pressure on the existing IT legacy systems.
• Increases efficiency of customer-related processes (connection to the meters, change of ownership, etc.)
•Verification of the meter (smart and/or regular) can be performed with any device, e.g. smartphone

 
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The crypto tag gets provisioned* and marked with QR code before being sent to the customer. Upon receipts customer performs a ‘digital meter association’**

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Every last day of the month the owner of the meter:

1. Scans the tag with his/her phone
2. Takes an image of the consumption data (image also shows the tag)
3. Types in the consumption data
4. Sends the data to the blockchain backend

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Reconciliation process happens on the blockchain:

1. Energy produced (considering specific stake of power plant rented or bought)
2. Energy consumed
3. Distribution charge

Instant settlement of outstanding bills.

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No changes are required to the power plant processes. Legacy systems provide data inputs used by smart contacts activated by customers tags during net metering settlement.

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A copy of all energy production data stored on the utility company database is stored on the blockchain.

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Reconciliation process happens on the blockchain:

1. Energy produced (considering specific stake of power plant rented or bought)
2. Energy consumed
3. Distribution charge

Instant settlement of outstanding bills.

*Process by which public key of a crypto tag is created and stored on the blockchain **Process by which a customer takes a picture of the QR code and the meter to which the crypto tag is affixed and registers the initial readings on the meter on Day 0.

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SET UP

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SETTLEMENT PROCESS

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