The grid's hourly emission intensity is dynamically determined based on the mix of electricity generation sources feeding the grid at any given time. Factors considered include the proportion of renewable energy sources, such as wind and solar, versus non-renewable sources, like coal or natural gas. As the composition of the electricity generation varies throughout the day due to demand and supply fluctuations, the emission intensity will change accordingly. This method ensures that we provide a real-time and accurate representation of the carbon intensity associated with electricity consumption for any specific hour.