Add impact metrics to dashboard page

What problem are we solving

Our sponsors are interested in knowing how much impact they are creating through Nowala but currently there is no information around that.

Hypothesis

We believe that having an impact metrics on the dashboard Will result in our sponsors staying engaged with the project We will have confidence to proceed when we see weekly users visiting the dashboard increases

Propose solution

Outline impact metric summary on the dashboard. Below are some potential impact metrics we can provide based on the information we collect.

[ ] Additional income generated, cumulatively since installation
[ ] CO2e emissions avoided since installation
[ ] Additional light hours used, cumulatively since installation
[ ] Savings on energy expenditure for pico-solar, cumulatively since installation

Figma Design

Metric Calculation

We would also need to consider how we can automate this calculation in the backend.

Considered alternatives

Additional context

Calculations are based on GOGLA's impact calculator, which is the industry standard

kemusa / nowala-mobile