hello experts, may i able to get the matlab cords for long term load forecasting using neural network?

Or maybe the examples of long term load forecasting using ANN tool where the input data includes such as weather, previous year's load, GDP and population. and how do we do the forecasting after trainiing ang testing? for example, if i want to forecast for the year 2020 to 2025. do we need forecasted input as well?

thank you!