A pipeline-integrated power generation system for remote oil and gas sites is disclosed. The system utilizes a flow-through generator with contactless magnetic coupling to eliminate shaft seals and dynamic penetrations. The system comprises a pipeline with a flow restriction device creating pressure differential, branch and return lines routing pressurized fluid through the flow through generator, and a sealed housing defining pressurized and atmospheric portions separated by a non-magnetic generator wall. A turbine wheel, shaft, and permanent magnets operate within the sealed portion, while external windings in the unsealed portion generate electricity through magnetic coupling across the generator wall. The contactless design eliminates leak paths, reduces maintenance requirements, and provides zero-emission power generation from existing pipeline flow. The sealed, self-contained design minimizes maintenance and enhances durability, suitable for remote locations.