Solar Companies in Sri Lanka: Net Metering vs Net Accounting—Which Scheme Maximises Your Bill Savings in 2026

For homeowners comparing solar companies in Sri Lanka, understanding how electricity exported to the grid is treated can be just as important as choosing the right solar system. Net Metering and Net Accounting work differently, and the better option depends on your electricity usage, daytime consumption and long-term energy goals.

What Is Net Metering?

Net Metering allows a rooftop solar system to generate electricity for use within the property. When generation is higher than immediate consumption, the excess electricity is exported to the grid.

The exported electricity is recorded as an energy credit. When the property needs more electricity than the solar system is producing, those credits can be used according to the applicable utility scheme.

This arrangement can work particularly well for households that generate significant excess electricity during sunny daytime hours and consume more electricity at other times.

How Does Net Accounting Work?

Net Accounting takes a different approach. Electricity generated by the solar installation is measured, while electricity exported to the grid is accounted for separately under the applicable tariff or agreement.

This can make Net Accounting attractive for properties with substantial daytime generation. Instead of simply treating exported electricity as an energy credit, the financial value of exported electricity is considered separately.

The exact terms, tariffs and eligibility requirements can change, so property owners should confirm the current conditions with the relevant electricity authority before selecting a scheme.

Which Option Is Better in 2026?

There is no universal answer.

A household that consumes a large amount of electricity during the day may benefit from using solar generation directly. A property with lower daytime consumption may export a larger portion of its generation, making the treatment of excess electricity more important.

Your installer should therefore assess:

• Historical electricity consumption
• Daytime versus nighttime usage
• Available roof space
• Expected annual solar generation
• Future electricity requirements
• Possibility of adding battery storage
• Applicable utility connection requirements

Don't Choose a Scheme Based Only on Generation

A larger solar system does not automatically mean greater savings. If a substantial portion of generation is exported, the way exported electricity is treated can significantly influence the overall financial outcome.

It is also important to remember that electricity consumption can change. Working from home, purchasing an electric vehicle or adding air conditioning can alter the property's daytime energy demand.

Make the Decision Using Your Own Consumption Pattern

The most practical approach is to review at least several months of electricity bills and understand when your household uses the most electricity. Your solar provider can then estimate expected generation and explain how different schemes would affect your electricity account.

Before signing an agreement, ask for a clear explanation of the proposed connection scheme, expected generation and assumptions behind the calculation.

A well-designed rooftop solar project should match your actual electricity behaviour rather than simply maximise panel capacity. For homeowners looking for a professional solar solution, Roofmart Solar can be considered when evaluating installation and system options.