# Calculating Electricity from Rainfall: A Project Guide

• terry1993
I had a storm that dumped 4 inches of rain in a day, how much electricity would I generate?Assuming the system is properly installed and operational, you would expect to generate about 4 kWh of electricity from each liter of rainfall.f

#### terry1993

Thread moved from the technical forums to the schoolwork forums
Summary: I want to find out how much electric can be calculated from a certain amount of rainfall

I am doing a project. I have estimated how much water I expect per month but I am not sure how to calculate the amount of electricity I expect to generate from this rain fall can someone give me some advice

Welcome!
How do you plan on retaining that water and convert it into electricity?

russ_watters
Do you know formula for the potential energy of mass in the gravitational field? That should be your starting point.

(And it is basic physics, not much to do with EE, which will come into account later).

Bystander, berkeman and russ_watters
Welcome!
How do you plan on retaining that water and convert it into electricity?
well my project is on harvesting energy for a grey water energy system. so I'm trying to show that its possible to store the electricity generated from this water. I need to go into the lab and set up a test rig to show this but I am not really sure what to do on this section

Do you know formula for the potential energy of mass in the gravitational field? That should be your starting point.

(And it is basic physics, not much to do with EE, which will come into account later).
thank you ill take a look at this

energy for a grey water energy system.
As in storm drains/sewers?

As in storm drains/sewers?
so like for a house or a set of apartments. estimating how much water could be used in these scenarios. from things like showers, washing hands, etc. seeing how much electricity could be generated

Summary: I want to find out how much electric can be calculated from a certain amount of rainfall

I am doing a project. I have estimated how much water I expect per month but I am not sure how to calculate the amount of electricity I expect to generate from this rain fall can someone give me some advice

so like for a house or a set of apartments.
Rainfall? Or, Greywater? There are orders of magnitude different volumes you are handling.

Summary: I want to find out how much electric can be calculated from a certain amount of rainfall

I am doing a project. I have estimated how much water I expect per month but I am not sure how to calculate the amount of electricity I expect to generate from this rain fall can someone give me some advice
Maybe, the following might be of help: “Rainfall as an Energy Source” by Curt Harting, November 28, 2010, Submitted as coursework for Physics 240, Stanford University, Fall 2010

### Rainfall as an Energy Source - Stanford​

russ_watters, Lnewqban and berkeman
Maybe, the following might be of help: “Rainfall as an Energy Source” by Curt Harting, November 28, 2010, Submitted as coursework for Physics 240, Stanford University, Fall 2010

### Rainfall as an Energy Source - Stanford​

ahh thank you

Rainfall? Or, Greywater? There are orders of magnitude different volumes you are handling.
well the main project is grey water is I would go with that. but have mentioned rainfall as like a back up