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Solar PV Reports: Electricity Bill, Income and Savings | IAMMETER

Solar PV Reports: Electricity Bill, Income and Savings

IAMMETER solar PV reports help users understand the financial and energy performance of a home solar system.

The reports answer practical questions:

  • How much electricity was imported from the grid?
  • How much solar energy was exported to the grid?
  • How much did grid electricity cost?
  • How much feed-in income was generated?
  • How much solar energy was used directly inside the home?
  • What is the total saving from the solar PV system?

If you want the complete solar monitoring workflow, start here:

For real-time dashboard metrics, see:


1. What the Solar Reports Help You Understand

IAMMETER-Cloud reports connect energy data with electricity cost.

Question Report value
How much electricity did the home buy from the grid? Grid Consumption
How much solar energy was exported? Exported Energy
How much did imported electricity cost? Electricity Bill
How much feed-in income was generated? Income
How much solar energy was used directly? Direct Self-use
How much money did solar save? Total Saving
What is the self-consumption rate? Direct Self-use Rate

These reports are especially useful when grid electricity prices and feed-in tariffs are different. In many regions, using solar energy directly is worth more than exporting it to the grid.


2. Overview Page

The solar overview page shows KPIs and real-time energy flow for the solar PV system.

It is useful for checking current status, while the reports are better for analyzing daily, monthly, and yearly performance.

Learn more:

Solar PV overview page in IAMMETER-Cloud


3. Report 1: Energy Usage and Billing

The Energy Usage and Billing report shows grid consumption and electricity bill over selected time periods.

It helps users understand:

  • How much electricity was imported from the grid
  • How the bill changes by day, month, or year
  • How TOU or peak/off-peak tariffs affect electricity cost
  • Whether solar generation reduces grid consumption during expensive periods

Energy usage and billing report for solar PV system

If your electricity price changes by time period, configure the correct tariff plan:


4. Report 2: Billing and Income

The Billing and Income report compares:

  • Grid consumption and electricity bill
  • Exported solar energy and feed-in income
  • Final balance between cost and income

This report is useful for users who want to understand both sides of the solar economics:

  • What did I pay for grid electricity?
  • What did I earn from exported solar energy?
  • How much did grid import exceed feed-in income?

Billing and income report for solar PV system


5. Report 3: Bill, Income and Saving

The Bill, Income and Saving report focuses on the real value of the solar PV system.

It shows:

  • Direct self-use energy
  • Direct self-use rate
  • Grid electricity cost
  • Feed-in income
  • Total saving

Bill income and saving report for solar PV system

In many countries and regions, the feed-in tariff is much lower than the grid electricity price. This means the direct self-use of solar energy is often more valuable than exporting solar energy to the grid.

For example, if the grid electricity price is 0.25/kWh and the feed-in tariff is 0.05/kWh, using 1 kWh of solar energy inside the home avoids 0.25 of grid cost, while exporting it only earns 0.05.

That is why Direct Self-use Rate is an important KPI for home solar users.


6. How IAMMETER Calculates Solar Savings

IAMMETER calculates solar benefit based on direct self-use and exported energy.

Basic formula:

Total benefit = direct self-use energy x grid electricity price + exported energy x feed-in tariff

Where:

  • Direct self-use energy means solar energy used directly by home loads.
  • Exported energy means surplus solar energy sent to the grid.
  • Grid electricity price is the tariff paid when buying electricity from the grid.
  • Feed-in tariff is the tariff received when selling solar energy to the grid.

This helps users evaluate whether the solar PV system is reducing electricity costs as expected.


7. Use Reports to Find Optimization Opportunities

Reports can show whether there is unused solar potential.

If Exported Energy is high:

  • The home may have surplus solar energy during the day.
  • The self-consumption rate may be lower than expected.
  • There may be an opportunity to shift loads to solar production hours.

Optimization options include:

  • Run flexible appliances during solar production hours
  • Heat water during solar surplus periods
  • Use Home Assistant or Node-RED automation
  • Use WPC3700 to dynamically control an electric boiler or water heater

For resistive loads such as electric boilers, IAMMETER can use the WPC3700 Wi-Fi Power Controller to increase solar self-consumption.

Learn more:


8. Multi-site Solar PV Reports

If you manage more than one solar PV site, IAMMETER can help compare site performance.

This is useful for:

  • Solar installers
  • PV integrators
  • Users with multiple homes or solar sites
  • Operators who want to compare self-consumption and generation efficiency

Learn more:

Sort all the solar PV sites in one view


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