LOFAR (Low Frequency Array) is the largest radio telescope in the world. A radio telescope is used to create telescope images from radio waves, with a relatively large wavelength. LOFAR consists of approximately 7000 LBA type antennas and 50000 HBA type antennas, spread across fields throughout Europe, with their centre in the Northern Netherlands, where 70 % of the antennas are located. The current LOFAR installation was designed about 10 years ago and remained virtually unchanged since then. Progress in technological development offers opportunities to update LOFAR on a large scale, mainly in two areas, a wider system deployment and an improvement in the sustainability of the system. First of all, research is being carried out on an update of the analogue and digital electronics. Current components in the antennas are no longer available, which makes the construction of new fields impossible. In addition, improving digital information processing can broaden LOFAR’s scope. In addition, the update includes the sustainability of the LOFAR system. The energy-intensive system can be supplied by PV panels with renewable energy, but the PV inverters needed to do so are currently causing interference with the radio signals to be received from LOFAR. It is therefore necessary to examine how this effect can be minimised or compensated. The ultimate goal of this knowledge development project is to implement this technology in the LOFAR 2.0 system from 2020. From that moment on, there is a renewed investment in improving and expanding the LOFAR system. The necessary knowledge must be ready for this. This keeps the system at the forefront of the world. This means that LOFAR will have opportunities for wider applications for, for example, ESA, the agri-culture sector and other potential markets. In addition, the project will also ensure a strengthened knowledge position of the North Netherlands, which can also be applied in other markets.