12
Motivation
The global energy sector is undergoing a profound transformation driven by the urgency to transition
towards sustainable and renewable energy sources. Although most countries have the right conditions
for renewable energy generation, businesses have had limited opportunities to benefit from clean
energy. Central to this shift is the utilization of Power Purchase Agreements (PPAs), which have
historically played a crucial role in promoting renewable energy and managing the transition from
regulated to competitive electricity markets. However, traditional PPAs are often complex, time-
consuming, and expensive, creating barriers to entry for smaller energy producers and buyers. In
countries such as Oman and Saudi Arabia, the transition to a market-based energy system has
involved significant restructuring, with PPAs being key instruments in this evolution. Yet, the
financial challenges faced by state-owned utilities highlight the need for more efficient and flexible
contracting mechanisms to support the growing demand for renewable energy investment [1].
Virtual Power Purchase Agreements (VPPAs) have emerged as a pivotal solution in this landscape,
enabling companies to financially hedge against market fluctuations and secure green energy without
taking physical delivery. Despite their advantages, VPPAs are often hindered by complex, lengthy
processes and high transaction costs, which can reach up to $1 million and extend lead times to 12-
18 months [2]. This has limited their accessibility, predominantly benefiting large corporations with
substantial legal and financial resources, while excluding smaller entities that also seek to participate
in green energy procurement [3].
To address these inefficiencies, blockchain technology, specifically Layer-2 solutions such as
Optimistic Ethereum, presents a transformative opportunity. Blockchain's decentralized nature,
coupled with its ability to automate processes through smart contracts, offers the potential to
streamline VPPAs, significantly reducing processing times. Blockchain technology has the potential
to enhance the security and transparency of energy transactions, thereby addressing existing
bottlenecks in the VPPA market [4]. The integration of smart contracts on blockchain platforms like
Ethereum allows the execution of predefined agreements between energy producers and buyers in a
decentralized, immutable, and automated manner, which reduces the need for third-party
intermediaries [5].
The motivation for this thesis lies in addressing the existing bottlenecks in the VPPA market through
innovative blockchain solutions. By integrating Optimistic Ethereum, we seek to demonstrate how
VPPAs can be made more accessible, fast and secure, ultimately supporting the financing and
operation of renewable energy projects such as photovoltaic and wind parks. Our approach aims to
create a scalable, automated platform that simplifies the matching of green energy producers with
buyers, ensuring that the terms of the agreement are immutably recorded and enforced via blockchain
technology. Furthermore, the extension possibilities of this approach include enhancing cross-border
energy trading and expanding the market reach of renewable energy investments. This work
contributes to the broader goals of energy market liberalization and sustainability, offering a blueprint
for the future of green energy procurement in a digitally transformed landscape.