Queensland Schools Solar and Battery: A Tender and Technical Review Guide for Boards and Business Managers

A school is one of the best-shaped solar sites in Queensland — and one of the easiest to get wrong. Classrooms, libraries, halls and offices draw power all day, exactly when the sun is up, which is why solar can look so attractive on a school balance sheet. But a school is also a public building full of children, with roofs that were never designed for panel loads, holiday periods when almost nobody is on site, and a tender process where the lowest price can hide the most expensive exclusions. In Brisbane and across Queensland, the difference between a good school solar project and a bad one is rarely the panels. It is the load data, the roof assessment, the export arrangement and the tender scope.

This guide is for Queensland school boards, business managers, principals, P&C committees and education facility managers who are considering solar, batteries, or both. It explains how a school's load shape changes the design, what a tender must actually cover, and where independent review protects a school before it signs — without promising savings, payback or compliance that can only be established for a specific campus.

1. A school's load shape is not a home's load shape

Daytime load is the opportunity. Unlike a home, where the house is often empty during the day and solar is exported at a low feed-in value, a school consumes most of its electricity during school hours: air conditioning, lighting, IT, kitchens, workshops and halls. Solar generated during the day is therefore much more likely to be consumed on site, which is the most valuable use of solar energy on any tariff. That is the genuine case for school solar, and it should be proved with the school's own interval data, not asserted in a brochure.

Holidays are the trap. The same school that self-consumes well in term time exports heavily in school holidays, when classrooms are empty but the sun is strongest. A system sized only for term-time peaks will export a large share of its generation in holidays, at a feed-in value that is far below the retail price of the electricity it displaces in term time. A system sized for holiday export, chasing feed-in revenue, will be oversized for the load that actually pays. The honest sizing question is: what fraction of generation is self-consumed across the whole year, including holidays, and what does the business case look like on that figure, not on a term-time figure?

Evening and weekend loads are smaller, but not zero. After-school activities, community use of halls and ovals, cleaning, security and IT systems all draw power outside school hours. A battery's value for a school therefore depends on which evening loads actually exist, and how large they are — not on a generic claim that a battery "stores daytime solar for night". For most schools, the battery case is narrower than for a home: it is about shaving a demand peak, covering specific evening uses, or providing backup for defined critical loads, and it must be modelled on the school's own profile.

School load pattern	What it means for solar	What it means for a battery
Term-time daytime (classrooms, IT, air conditioning)	High self-consumption; strongest solar case	Battery adds little if load already absorbs solar
School holidays (near-empty campus)	High export at low feed-in value; do not size for holidays alone	Battery rarely pays on holiday export alone
After-school and evening (halls, sport, community use)	Some evening load, but smaller than daytime	Battery case depends on actual evening load size
Weekends and public holidays	Low load, high export	Model on real weekend data, not assumptions
Critical loads (servers, security, refrigeration, medical rooms)	Solar alone does not provide backup	Backup only for circuits actually wired to the battery

2. The roof, the switchboard and the safety case come first

A school roof is a structural and safety question, not a blank canvas. Many Queensland school buildings are older, with roofs, trusses and fixings that were not designed for the additional dead load, wind load and access requirements of a solar array. A tender that prices panels without a structural assessment, a roof-condition survey and a fixing method suited to that specific roof is pricing a hope. Where a roof is due for replacement or repair, the order of works matters: installing panels on a roof that needs replacing within a few years means paying to remove and reinstall them.

Child safety and access change the design. Panels, inverters, batteries and cabling on a school campus must be placed and protected so that students cannot access live equipment, and so that maintenance can be done without closing classrooms or creating hazards. Battery placement must comply with AS/NZS 5139, and inverter and switchboard locations must be assessed for access, ventilation and protection. A design that works on a warehouse does not automatically work on a campus full of children.

The switchboard and the network connection are the hidden scope. A school's existing supply, transformer capacity and switchboard rating determine how large a system can be connected, and what export limit applies. In South East Queensland, Energex is the network; in regional Queensland, Ergon Energy Network. Connection and export settings are commonly described in network guides as a basic fixed export of up to 5 kW per phase with dynamic export up to 10 kW per phase on single-phase connections, with larger commercial connections assessed individually — but those are published summaries, not the school's approval. The connection application, the export limit and any network augmentation cost must be confirmed for the specific campus before a tender price can be trusted.

3. What a school solar tender must actually cover

Scope is where school tenders fail. Competing tenders often differ not on panel brand, but on what is excluded: structural assessment, roof works, switchboard upgrades, network application fees, monitoring, maintenance, warranty handling, and who owns the system data. A tender that excludes the switchboard upgrade, then discovers one is needed, is not cheaper — it is incomplete. Before comparing prices, a school should require every tenderer to price the same scope, in writing, including:

• Load and interval-data analysis — 12 months of interval data, term-time and holiday profiles separately, and a self-consumption calculation across the full year.

• Roof and structural assessment — roof condition, structural capacity, fixing method, and any roof works required before installation.

• Electrical design — single line diagram, inverter and battery sizing with reasons, switchboard assessment, protection and earthing, and the network connection application.

• Export and tariff modelling — the school's actual tariff, the export limit in the connection approval, and a business case modelled on that tariff, not on a generic rate.

• Warranties and ownership — who holds each warranty, what happens if a supplier or installer ceases trading, and who maintains monitoring and fault response.

• Safety and compliance — AS/NZS 5139 battery placement, child-safe equipment locations, and documentation the school retains for future works.

Dated update, October 2026. Since 1 October 2026, the federal Small-scale Renewable Energy Scheme covers eligible solar systems up to 1 MW, expanded from 100 kW, with applications for the mid-scale change expected from mid to late November 2026 according to the Clean Energy Regulator. For a school, this is directly relevant: a campus system that previously sat above the old 100 kW threshold may now fall within the expanded scheme, which changes the rebate question and the tender comparison. Do not let a tender quote a rebate figure without naming the scheme rules, the system size and the commissioning date it relies on — and do not assume a system above 100 kW automatically qualifies until its eligibility is confirmed for that campus.

Dated update, October 2026. On 30 October 2026, the Australian Energy Regulator refused requests from Energex and Ergon Energy to remove optional demand tariffs and flexible load tariffs from their 2025–30 tariff structure statements, so the approved statements continue for the 2025–30 period, with optional demand tariffs available from 1 July 2027 and flexible load tariffs from 1 July 2028. For a school, demand charges are a live part of the bill: a solar and battery design that ignores the school's demand profile will misstate its value, in either direction. Model the tariff the school actually pays, and the tariff direction Queensland is heading in, before signing.

4. Batteries for schools: a narrower, more honest case

A battery is not automatically a good school investment. Where a school already self-consumes most of its solar during the day, there is little surplus left to store, and a battery's value shrinks to demand shaving, specific evening loads, or backup for defined circuits. Where a school exports heavily in holidays, a battery sized to capture holiday surplus will sit idle for much of term time. Either way, the battery must be sized on the school's interval data and evening load, not on a standard residential size.

Backup for a school means defined circuits, not the whole campus. A battery that backs up the server room, security systems, refrigeration and a medical room is a credible resilience investment. A battery sold as backing up "the school" without a circuit list is not. Ask for the backed-up circuits in writing, the duration they will run on a full battery, and what happens when the battery is flat. A school's emergency planning should be based on that list, not on a brochure claim.

Procurement protection matters more for schools than for homes. A school tender is public money, governed by procurement rules and accountable to a board, a department or a parent community. Independent technical review before signing — of load data, sizing, scope, exclusions and warranties — is not bureaucracy. It is the control that stops a low tender price becoming a high total cost, and it is the record that shows the board did its due diligence.

5. How Both Sides Win

The school wins when its tender is compared on identical scope, sized on its own interval data including holidays, and backed by a roof, switchboard and connection assessment that were done before the price was fixed.

The board wins when it can show its community and auditors that the decision was based on documented load data, a tariff-modelled business case and a written scope — not on the most confident sales presentation.

The installer wins when the scope is clear before work starts: a roof assessment, a switchboard assessment, a connection application and a maintenance plan, agreed in writing, instead of variations discovered halfway through a term.

6. What EServices4U would check independently

• Solar and battery feasibility assessment — from $299 — interval-data load profiling (term-time and holiday separately), sizing and self-consumption modelling, tariff and demand-charge impact, and battery case assessment on the school's actual evening load.

• Tender and quote comparison — where competing school tenders differ on scope, exclusions, roof and switchboard works, warranties or rebate claims, checking that they cover the same work before a contract is signed.

• Home Owner's Engineer services — from $599 — where that scope fits a particular engagement, including independent review of a campus design, single line diagrams and commissioning.

• Commercial Infrastructure Assessment / RPEQ & RPEV SLD Sign-Off — from $495 — where the engagement scope requires it, for larger campus and commercial installations.

Scope and the qualifications required for each engineering engagement are confirmed before work starts. EServices4U does not sell installations and does not receive installer commissions, so the review is independent of any solar or battery supplier or installer.

Frequently asked questions

Is solar a good investment for a Queensland school?

Often, yes, because schools consume power during the day when solar generates. But the case must be proved on the school's own interval data across the full year, including holidays, and on its actual tariff — not on a generic claim.

Should a school add a battery at the same time as solar?

Only if the battery case is modelled on the school's evening load, demand profile or defined backup circuits. Where a school already self-consumes most daytime solar, a battery adds less value than a residential brochure suggests.

What is the biggest mistake in school solar tenders?

Comparing prices for different scopes. A tender that excludes roof works, switchboard upgrades or the network application is not cheaper — it is incomplete, and the missing costs appear later as variations.

Does the expanded 1 MW scheme change school solar?

Since 1 October 2026, the Small-scale Renewable Energy Scheme covers eligible systems up to 1 MW, expanded from 100 kW. A campus system above the old threshold may now fall within the scheme, but eligibility must be confirmed for the specific system size and commissioning date — do not accept a rebate figure without the rules behind it.

Who approves a school's solar connection in Queensland?

Energex in South East Queensland and Ergon Energy Network in regional Queensland. The connection application and export limit for the specific campus must be confirmed before installation, not assumed from a network guide summary.

Get an independent check before you commit

• Start with a free 15-minute consultation to talk through your tender, system, building, or project and find out which fixed-fee review fits, if any. Call/WhatsApp 0480 001 498 or email growthpartner@eservices4u.com.au. No obligation, and it does not include a written report.

• Solar and battery feasibility assessment — from $299. See packages and pricing.

• Residential quote review — from $149. See packages and pricing.

• Home Owner's Engineer services — from $599. See owners engineer Australia.

• Commercial Infrastructure Assessment / RPEQ & RPEV SLD Sign-Off — from $495. See packages and pricing.

• EServices4U home — eservices4u.com.au. Team — team. Quote — quote.