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Commercial Solar for Irish Businesses – What to Consider

Commercial solar systems generate electricity for use on site. Whether a project is suitable depends on the building or land, the organisation’s electricity profile, technical constraints and the commercial terms offered by a qualified provider.

Overview

The useful starting point is evidence: suitable site surveys, interval electricity data and a clear explanation of how the proposed system has been sized. A general estimate cannot replace a project-specific design.

How Commercial Solar Works

Solar panels convert daylight into electricity. An inverter converts that output into electricity the building can use. When generation is lower than site demand, the balance is supplied through the normal electricity connection. When generation is higher, the treatment of the surplus depends on the system and connection arrangements.

Output changes throughout the day and across the year. It is therefore important to compare the expected generation profile with the times when the business actually uses electricity.

Assess Your Site and Energy Profile

A qualified assessment should consider usable roof or land area, orientation, shading, roof condition, structural capacity, access, electrical infrastructure and fire-safety requirements. Planning, landlord, insurer or other consents may also be relevant.

Electricity data is equally important. A provider should review daytime demand, seasonal changes, half-hourly or interval data where available, and any planned changes such as additional equipment or EV charging. This helps test how much generation is likely to be used on site.

Understand Costs, Output and Payback

Commercial solar costs vary with system size, equipment, roof or ground works, electrical upgrades, access, connection requirements, monitoring and maintenance. Generation estimates also depend on the site and the assumptions used in the provider’s model.

A payback estimate should show the electricity price assumption, expected on-site use, treatment of surplus generation, degradation, maintenance, finance costs and available support.

Solar on Offices at Nissan 2

Check Current Grants, Consents and Provider Requirements

SEAI currently provides the Non-Domestic Microgen Grant for eligible organisations and systems, but grant values, limits and conditions can change. Check the live SEAI guidance and the required application sequence before signing a contract or starting work.

SEAI guidance also explains the use of registered companies and the connection process. Your provider should confirm all project-specific permissions, notifications, grid requirements, insurance and technical standards that apply.

Consider Solar Alongside Workplace or Fleet Charging

Solar generation can contribute to the site’s overall electricity supply, but it does not mean vehicles will always charge directly from solar. Generation may peak when fleet vehicles are away or when staff charging demand is different.

The relationship should be modelled using both site-energy and charging data. On the EV side, eStation can assess vehicle demand, charger mix, site capacity and load-management options. The appointed solar provider should confirm the design, generation assumptions and solar-specific works.

Commercial Solar Information for Businesses FAQs

Does eStation install commercial solar panels?

No. eStation provides EV charging solutions, management software and related support. Businesses should use a suitably qualified solar provider for surveys, design, quotations, installation and maintenance.

How can a business tell whether its site is suitable for solar?

A qualified assessment should consider roof or land area, orientation, shading, structure, electrical infrastructure, consents and the site’s daytime electricity profile.

How many solar panels does a commercial building need?

System size should be based on usable space, energy-consumption data, project objectives, connection constraints and a provider’s generation model. There is no universal panel-to-floor-area ratio.

Can commercial solar support workplace or fleet EV charging?

Solar can contribute to the site’s electricity supply, but generation and vehicle-charging demand may occur at different times. The relationship should be modelled using site and charging data.

Are grants available for commercial solar in Ireland?

Supports and eligibility can change. Use current SEAI guidance, confirm the application sequence and engage a provider that meets the scheme’s requirements before committing to work.