Articles / Solar Installers

Should a solar business focus on batteries?

Whether a solar business should focus on batteries is a margin question before it is a sales question. Panel, inverter, battery and labour each carry a different margin, and blending them into one quote can make a job look strong on paper while the real, blended margin quietly falls. The number that tells the truth is the blended gross margin on each job, not revenue or how many customers take a battery.

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By Greg Allan, tradesman and creator of Data First Coaching

Should a solar installer put a battery on every quote?

Pushing a battery onto every quote because the market wants them is a sales decision, not a margin decision, and the two are often treated as the same thing. A solar installer who chases battery attachment rate without checking what that battery actually returns on the job can end up with more sales and less profit at the same time.

A panel and inverter install priced on its own usually sits inside a margin the installer understands well. The moment a battery line is added, the quote is carrying several products, each bought in at a different cost and marked up differently, plus the labour, roof access and the certificate and rebate paperwork that sits around the whole job. What the customer sees as one number on the quote is really several different margins blended into one, and it is the blend that decides whether the job was worth doing, not any single line.

Why does a solar business look busier but earn less once batteries are added?

A solar business can grow its revenue through battery attachment and still shrink its net profit, because markup on cost and margin on the sale price are not the same number, and most quoting is done on markup. A job that is marked up by a healthy looking percentage on cost can still return a much lower margin once it is actually sold, and that gap gets wider the more products are blended into the one quote.

For a solar installer this shows up fastest on a residential job with panels, an inverter and a battery quoted together. Each item was bought at a different cost, marked up by a different habit or supplier arrangement, and then the labour for the install, the roof access, the switchboard work and the paperwork for the network approval and certificates get added on top as if they were a flat cost. Overhead, the time spent on sales, site visits, warranty claims and service calls across the business, rarely gets attributed properly across every line. A quote that looks healthy at the point of sale can fail once that true cost mix is properly spread across panel, inverter, battery and labour.

What number actually tells you if a battery job is profitable?

The number that tells you the truth is the blended gross margin on that specific job, checked at the point of quoting, not the markup you applied or the revenue the job brought in. Revenue and attachment rate tell you how much you sold. Blended margin tells you what you kept.

Most solar installers can tell you their average margin across the business in general terms, but far fewer can tell you, job by job, what panels plus inverter plus battery plus labour actually returned once every cost was properly attributed. That is the number that separates a solar business growing its profit from one growing its revenue and quietly shrinking its profit, and it only comes from your own job data, not from an industry rule of thumb or a competitor's pricing.

How do AI agents change the way a solar installer quotes and tracks margin?

AI agents can take the quoting and tracking work that most solar installers do by hand or not at all, and do it the way the owner prices, every time, on every job. An agent is software that does a job the way you would do it yourself, using your prices, your wording and your rules, so the quote and the margin check happen the same way whether you are on site or in the office.

Picture a solar installer whose leads, quotes, job profit and incoming emails were spread across a phone, an inbox and a notebook, and who worked out cable sizing and voltage drop by hand after every site visit before a quote could even go out. A business management system built on that installer's own data can track every lead through the pipeline, work out cable sizing and voltage drop as part of the quote, turn emails into tasks instead of letting them sit unread, and report the profit on every job automatically once it is complete. Built from photos taken on site during the inspection, the quote fills itself in with panel, inverter, battery and labour lines already separated, so the blended margin is visible before the job is booked, not discovered after.

This is data first: the decision to chase batteries or not starts from what your own jobs have actually returned, not from a feeling that batteries are where the market is heading.

So should a solar installer still sell batteries?

Batteries are not the problem, and a solar business is not wrong to offer them. The problem is selling them without knowing what they return once labour, overhead and the full cost mix are properly spread across the job.

A solar installer who knows the blended margin on a panel-only job, a panel and battery job, and a commercial solar job with monitoring and an EV charger added can present good, better and best options to a customer with confidence, because each option is priced from what it actually returns, not from a markup habit. That conversation can end in a booked install date, built from discovery, instead of a quote left sitting in an inbox while the customer compares prices elsewhere.

How does Data First Coaching approach this?

Data First Coaching, created by Greg Allan, starts from the solar installer's own job data, read through the Trade Business Intelligence, rather than from an explanation of how the business runs. For a question like batteries, that means looking at blended margin job by job, not attachment rate or revenue, to find out whether growth in battery sales is actually growing profit or just growing turnover. From there the coaching works out where the real gap sits, in quoting, in cost attribution, or in how labour and overhead are spread across panel, inverter and battery lines. The how is worked through inside the Academy, with other members, because the Trade Business Intelligence is powered by every member who joins it, and the Academy is built for owners who are open minded, innovative and willing to share what they learn.

Looking for a business coach who starts from your numbers? Solar Business Coach or every answer for solar installers.

Also asked

More questions owners ask.

Why does attachment rate look like a good measure of battery success?

Attachment rate tells you how many customers bought a battery, which feels like success, but it says nothing about what that battery actually returned once the full cost mix, labour and overhead were spread across the job. A high attachment rate can sit next to a falling net margin.

Does commercial solar face the same margin blending problem as residential?

Yes, often more so. A commercial solar job can blend panels, inverter, battery, monitoring and a larger system size with longer labour and network approval timelines, so the blended margin can hide even further from a quick look at the quote total.

Is markup the same as margin when pricing a solar install?

No. Markup is calculated on cost and margin is calculated on the sale price, so a quote marked up by a healthy looking percentage can return a noticeably lower margin once it is sold. Many solar installers price by markup without realising the gap.

Should a solar installer drop batteries if the margin looks thin?

Not necessarily. The point is to know the blended margin before deciding, not to avoid batteries altogether. Some jobs justify a lower margin on the battery line because of what it does for the customer relationship or the overall job size.

Data First Coaching

The Solar Business Coach Who Starts From Your Data.

Data First Coaching is the trade business coaching method created by Greg Allan, founder of Tradies Success Academy. Before any advice is given, the Trade Business Intelligence Agent reads the owner's own job management and finance data, so the coaching starts from what the numbers show this week, not from what the owner can remember or explain. It finds the root cause of a problem, then puts in the system that fixes it.

How most coaching works

Most coaching starts with the owner explaining the business.

  • The first hours go on the owner describing the business to a coach.
  • The picture is out of date within weeks, because the numbers move every week.
  • So the advice treats what the owner happened to notice, which is usually a symptom.
  • Too often it comes from someone who has never run a trade business, or has only just started one.
  • The owner pays for the explaining, then pays again when the advice does not fit.

Data First Coaching

Data first starts from your numbers, not your memory.

  • The Trade Business Intelligence Agent reads your job management and finance systems first.
  • It sees your quotes, jobs, time on site and money as they are this week, not as you remember them.
  • It finds where the problem actually starts, not where it shows up.
  • You put in the system that fixes it at the root, and the data shows whether it worked.
Typical coaching against Data First Coaching
Typical coachingData First Coaching
Where it startsYou explain the businessYour own job and finance data
How current it isAs at the last meetingUpdated as your numbers change each week
What it fixesThe symptom you noticedThe root cause the data shows
Who coaches youOften someone who has never run a trade businessGreg Allan, who built a trade business a general manager now runs
The answer to growthUsually another wageAgents on the office work, people on customers and the crew
Your softwareAnother subscription or agencyTools you build on your own data, around how you work

Fix the root cause, once

The data names the real problem, so the system you put in fixes it once instead of patching the same symptom every month.

Own your software

Build your own tools on your own data, shaped around how your jobs run and how your customers buy. Cancel the subscriptions and agencies that were never built for your business.

A more human business

Agents do the non-billable work: the quoting, invoicing, chasing and reporting. Your people spend the day on customers and the crew, so relationships get better and the team performs.

Why Greg

You speak to the owner who has already done it.

Greg built Response Electricians in Perth into a 30+ staff business with 1,950+ five-star reviews. A general manager runs it.

He has trained 9,000+ trade business owners across Australia and New Zealand.

He grew a coaching company to 35 staff, a CEO and 15 coaches, then cut it back so every owner deals with him directly.

Most coaching companies hand you to a salesperson, then to a coach who has never run a trade business. Here you get the owner.

The Academy is in demand because it works, and Greg keeps places limited on purpose so every business gets looked at properly, by him. He reads every application himself, interviews the owners who fit and only takes on owners who are building for the right reasons and give back to the group. Apply now and he'll be in touch when a place opens.

Illustration: a trade business owner standing over three office staff buried in paperwork at night.
The old way

More customers meant more people doing the computer work, and more wages nobody invoices.

Illustration: a tradesman shaking hands with a homeowner in her driveway, his phone showing jobs quoted and invoiced.
The new way

You stay with your customers and your team. The office stops landing on you.

The old way

More jobs. More paperwork. Less of the owner left.

Most trade businesses grow the same way.

More jobs means more quoting, invoicing, chasing and scheduling.

None of it gets paid for.

So the owner does it at night, after a full day on site.

Or hires an office person to do it.

The office grows. The wages grow. The margin does not.

And the owner is still the one everything waits on.

Where we take you

More work. More profit. More of you left.

The phone rings with the jobs you want, at the price you set.

You grow when you're ready, never faster than the business can carry.

Every job is priced to make money, so the busy months show up in the bank.

The best tradies in your area want to work for you, and they stay.

The chasing, the paperwork and the 9pm admin stop landing on you.

The business runs the day. You pick which parts of it you're in.

Bigger, without the headaches. Getting bigger stops meaning getting busier.

P.S.

P.S. Applying costs nothing and there is no obligation. While you wait, the Tradies App is free for trade business owners, so you can start on the lessons tonight.