Exploring earth abundant transition metal oxides, carbides, nitrides, and sulfides is actively being pursued to achieve robust, platinum-free electrocatalysts for water splitting. By virtue of their enhanced stability in acidic medium and promising electronic conductivity, transition metal nitrides are currently at the forefront of achieving this transition. Recent, theoretical DFT studies have identified Ta-N based phases to have a near zero Gibbs adsorption energy with current densities on par with the state-of-the art earth abundant electrocatalyst -MoS2. Till date, very few experimental studies have explored Ta-N phases in detail. For example, in the case of micron sized Ta3N5 particles, overpotentials more than 500 mV vs RHE were observed for hydrogen evolution reactions. However, lack of nano structuring, fewer active sites and low surface area has resulted in poor performance. Nanoarchitectures, especially 1d fibers by virtue of their interconnected network, assist improved electron transfer and provide high surface areas that enhance water splitting kinetics. Here in, we propose to study nanostructured Ta3N5 – in the form of electrospun 1d fibers as potential electrocatalysts for hydrogen evolution reactions. The inevitable presence of oxygen, both in stabilizing Ta3N5 and its affinity towards tantalum, calls for a careful optimization of nitridation temperature. Elemental distribution of the nanofibers analysed through XPS, and bulk-EDS studies revealed an increase in surface oxygen concentration with an increase in nitridation temperature (from 900 °C to 1000 °C). Electrocatalytic currents of 10 mA cm-2 were delivered at overpotentials of 320 mV (vs RHE) which is much lower than previous reports on Ta3N5 as electrocatalyst for HER. Further, practical realisation of Earth Abundant Electrocatalysts (EACs) is hindered by limited electrocatalytic testing at a device level, and thus for the first time, the performance of Ta3N5 1d nanofibers without any conducting supports were evaluated in a PEM water electrolyser from RT to 70 °C. On par with other EACs such as MoS2, a current density of 0.1 A/cm2 was achieved at an applied voltage of 2 V with negligible losses over 6 h. However, prolonged processing times (> 12 h) with extensive power consumption (high voltages greater than 15 kV) hinder commercial application of electro spun fibers for device level studies. To address this, novel and efficient alternative to electrospinning based on centrifugal forces was explored to generate fibre mats. Using our-in-house developed prototype, polymer and ceramic fibres based on tantalum oxides with high throughput and low power consumption were successfully developed. Further, hydrogen evolution enhancement strategies based on creation of oxygen vacancies and nitrogen incorporation will be carried out in the future.