Project milestones

The resources raised by selling the pWatts are locked in the smart contracts of the Unergy Protocol. The proposed milestone-based approach allows the locked funds to be disbursed to the installer company or the seller of the Project (either way we call it the Project developer) according to the installation or acquisition progress in an objective and transparent manner.

The development progress of a Project is measured according to a defined set of milestones. Every milestone that is accomplished unlocks a specific amount of funds to be transferred to the Project developer, allowing the next milestones to be completed.

Upon the completion of a milestone, the Project developer is required to submit evidence of its completion. Once the evidence is successfully verified, the funds tied to the milestone are automatically transferred to the Wallet of the Project developer.

The installation milestones have been carefully designed, encompassing several years of the design, construction, installation and operation of renewable energy Projects. They allow an installer company to perform the engineering, procurement and construction of the Project without struggling for capital, but at the same minimizing the risk for the capital providers (i.e. the pWatt holders).

Proposed milestone structure

The following is a boilerplate list of the Milestones that were designed taking into account the proper development of a Solar Energy Project. It is important to take into consideration that the specific milestones associated with a Project may be slightly different depending on the scale and complexity of the Project to be developed and/or the demonstrated experience and background of the Installer company.


First advance payment: preliminaries


Project schedule

Contract compliance policy

Advance payment management policy

Salary, social benefits, and compensation insurance policy for on-site personnel

Non-contractual civil liability insurance policy

Machinery and equipment transportation insurance policy

All-risk insurance policy for the construction process

Second advance payment: detailed engineering and main procurement


Detailed engineering (calculation reports, single-line diagram, physical arrangement, simulations and datasheets)

Supplier letter(s) or invoice(s) certifying advance payment for solar panels, with reference and quantity

Supplier letter(s) or invoice(s) certifying advance payment for inverters, with reference and quantity

Supplier letter(s) or invoice(s) certifying advance payment for structure, with reference and quantity

Third advance payment: on-site equipments and installation preparatives


Photos of solar panels, inverters, and structure on-site

Payment of social security for on-site personnel

Certificate of height safety course completion for personnel

Certificate of the height safety supervisor

Photos of the energy generation measurement system

Fourth advance payment: installation of the system


Evidence of occupational health and safety (OHS) training for on-site personnel

Photos of installed inverters

Photos of AC and DC connections

Photos of panel installation

Photos of installed panel support structure

Photos of the system connection point to the grid

Photos of DC and AC panels

Photo of energy meter for the photovoltaic system

Approval of partial installation from a Unergy validator

Fifth advance payment: Obtaining certifications and insurance policies for the system’s operation


Installation quality and compliance certification

Asset quality insurance policy

Energy efficiency insurance policy

Completion of performance tests

Completion of communication systems stability test

Final approval from a Unergy validator

Final payment: System commissioning


Grid-connection certificate from the Grid Operator

Photos and evidence of the system’s energy production

If a pre-existing Project is acquired, a different set of milestones would be required, mainly technical, regulatory, and financial validations. In this scenario, the fund disbursement would be made accordingly to a payment structure defined along with the Project seller.

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