This page walks through analysis of a micro grid to evaluate the costs and benefits of adding different technologies given alternative demand profiles. The analysis involves building a utility company and includes much of the analysis discussed in different sections. Microgrid analysis includes analysis of different possible demand profiles, solar patterns, battery sizing analysis, seasonal hydro analysis, diesel cost analysis and other subjects. In addition the microgrid analysis includes evaluation of corporations that construct solar home systems and microfinance institutions that my finance microgrids or their components. In making the analysis I have tried to start with simple exercises and cases that form the basis of the microgrids and then move to more difficult subjects.
Structure of Microgrid Analysis
The analysis of any utility system, whether EDF in France or a microgrid in rural Rwanda should start with demand analysis and then move to how the demand will be supplied from different sources. If there is no storage from batteries, the sources and uses analysis can be pretty simple. It gets more complex when you must determine the amount of battery capacity and you must evaluate the timing of the charging and discharging of the batteries.
Once the sources and uses of energy are determined, the sources and uses of funds can be used to convert the physical data into financial data. You need to evaluate the cost structure of different sources of energy including the capital cost, the operating costs and potentially the fuel costs.
Part 1 – Demand Analysis
Part 2 – Hourly Solar Analysis
Part 3 – Supply Analysis without Batteries
Part 4 – Supply Analysis with Batteries