ACCORDANCE introduces a novel ultra high capacity (even reaching the 100Gbps regime) extended reach optical access network architecture based on OFDMA (Orthogonal Frequency Division Multiple Access) technology/protocols, implemented through the proper mix of state-of-the-art photonics and electronics. Such architecture is not only intended to offer improved performance compared to evolving TDMA-PON solutions but also inherently provide the opportunity for convergence between optical, radio and copper-based access.Although OFDM has been used in radio and copper-based communications, it is only recently that is making its way into optics and is expected to increase the system reach and transmission rates without increasing the required cost/complexity of optoelectronic components. ACCORDANCE hence aims to realize the concept of introducing OFDMA-based technology and protocols (Physical and Medium Access Control layer) to provide a variety of desirable characteristics, such as increased aggregate bandwidth and scalability, enhanced resource allocation flexibility, longer reach, lower equipment cost/complexity and lower power consumption, while also supporting multi-wavelength operation. In addition, it enables the convergence of the optical infrastructure with standard wireless solutions, thus offering a way to integrate dominant wired and wireless technologies in a hybrid access network supporting seamless ubiquitous broadband services.ACCORDANCE, despite being a focused STREP, is supported by 4 major EU industry partners who will contribute to EU leadership in the particular topics and will support the adoption of ACCORDANCE concepts as global standards. The partners strongly believe that the proposed architecture will provide fertile ground for the creation of wider market opportunities from new classes of applications and accelerated uptake of next generation services, by changing the way low-cost ultra-broadband connectivity is provided to end users.