Stornoway Background

Description of the Scenario

We simulated a scenario in which a Wind farm with a Hydrogen buffering sub-system would operate off grid i.e. without connection to the National Grid. This system would be designed to achieve a complete power balance, a power balance in which the demand and supply would be perfectly matched. Thereby, making the location in which it is deployed energy independent.

Aims

The primary aim of the modelling process is to design a system in which the Energy
Demand is met only by Pure Renewable Energy Supply. The degree to which we would achieve the power balance had to be high enough to guarantee that the load (i.e. the demand) would be met throughout the course of the year being simulated. This would also entail modelling the system to guarantee zero shortfalls for the entire period of operation (i.e. during the course of the simulation, the system must always have its actual operating capacity equal or exceed its required capacity). The system also had to be modelled to produce a small percentage of excess power; this was factored into the choice for the best performing system because other configurations were simulated that met our objectives but failed in terms of over production of excess power or system cost.

The secondary aim of the modelling process is to explore the transport potential from surplus hydrogen generated by the electrolyser. This was done by modelling a Hydrogen Schedule that would be guaranteed at 152Kg/day throughout the year to fuel two hydrogen public transport systems.