Calculated down to the last screw.
HappIT builds software for installers of solar panels, batteries, heat pumps and charging stations. From the first roof sketch to the final invoice, in one system built for your trade.
Built by installers, since 2013.
- Panel 430 Wp
- 18
- Hybrid inverter 6 kW
- 1
- Rail 6.2 m
- 12
- Roof hook, tiled roof
- 36
- Mid clamp 30 mm black
- 30
- Solar cable 6 mm², per metre
- 40
- Total excl. VAT
- € 7,845
Power ratio 1.29
Installers in Belgium, the Netherlands and beyond run on our software.
One job, start to finish
Follow one installation from the first enquiry until the panels are on the roof. At every step you see which product does the work. The whole installation can be finished in just a few days.
- 08:1008:10
An enquiry through your website
Someone draws their roof on your website and picks panels and a battery. A calculated quote appears in HappERP straight away.
More about HappQuote - 09:3009:30
A quote down to the last screw
Your salesperson fine-tunes the quote. Strings, inverter, rails, hooks and clamps are calculated, with the margin and return on investment alongside.
More about HappERP - 11:4511:45
Signed online
The customer opens the quote on their phone, tablet or PC, adds a charging station and signs. The deposit invoice is ready.
More about HappPortal - 14:0014:00
Booked with a free team
Drag the job onto a team that is available. You see right away whether all materials are in stock, and the customer gets a confirmation.
More about HappERP - A few days later
- 07:3007:30
On the roof
The crew follows the suggested route to the site, works through the photo checklist and has the customer sign off on the tablet.
More about HappField - 16:3016:30
Invoiced and registered
The final invoice goes out via Peppol. The inspection request and the grid operator registration follow on their own.
More about HappERP - 21:0021:00
Panels on the roof
The customer sees what the panels produced today and what that saves. They recommend you to the neighbours.
More about HappPortal
Choose your base. The rest connects.
Pick the ERP that fits your business. HappERP, proven with installers for years, or HappCore, our new and fully customisable ERP. HappPortal, HappQuote and HappField connect to it.
The proven ERP for installers.
Quotes with bills of materials down to the last screw, planning that accounts for teams and stock, and everything after: orders, deliveries, invoices, credit notes and more than a hundred reports.
- Bills of materials for any type of installation, from solar panels and heat pumps to a complete building project
- Planning per team, with a map, stock status and text reminders
- Invoices via Peppol, purchasing, stock and an Exact integration
- Custom work: calculators and bills of materials built around the way you work
- New
A complete ERP that you shape yourself.
HappCore is our new ERP, from quote to invoice. What sets it apart: you adapt it yourself, without writing code. A full replacement for HappERP, for companies that want maximum freedom.
- Quotes, orders, deliveries and invoices, with Peppol
- Your own workflows with conditions and automatic actions
- Reports you put together yourself
- Your own document and email layouts, built from blocks
Connects to your base
Works with HappERP and with HappCore.
Everything to your customers, in your brand.
Your customers sign quotes, pay deposits and follow their installation. Afterwards they see their production, consumption and savings in charts.
- View and sign quotes digitally
- Follow production, consumption and battery live
- Fully in the installer's own brand
Leads that are already calculated.
A quote tool on your own website. Visitors draw their roof on the aerial photo, choose their installation and get a price that holds. The request appears in HappERP or HappCore as a quote.
- Draw the roof on the aerial photo
- Solar panels, batteries, charging stations, EMS, backup power, air conditioning and heat pump boilers
- Every request arrives as a calculated quote
Your crews on site.
The app for surveyors and installation crews: today's jobs, route and contact details, photo checklists, extra materials and the customer's signature.
- Site surveys with all technical details
- Photo checklists you set up per company
- Handover with the customer's signature
Schemas for the inspection.
The single-line diagram of every installation, ready from the order in your ERP, with the symbols from the AREI.
- Single-line diagram from the order details
- Components from kWh meter to charging station
- Kept with the order, export as PNG or SVG
Custom work is our trade
Does your business work differently from the rest? Then we build calculators, bills of materials and integrations around it. Even for projects that have nothing to do with energy.
In figures
Added up across all installers who work with our software.
- invoiced through our software, excl. VAT
- more than €700 million
- quotes calculated
- 600,000+
- end customers managed
- 225,000+
- invoices sent
- 200,000+
- orders processed
- 175,000+
- installations completed
- 120,000+
- customers using HappPortal
- 10,000+
Every technology, with its own rules
A roof with solar panels needs a different calculation than a heat pump. That is why every technology has its own calculator, with the rules of the trade built in.
Solar panels
Draw the roof, calculate the strings, rails, hooks and clamps per roof type, down to the cutting list for the rails.
Home batteries
Every valid combination of modules and inverter, ranked by expected saving.
Heat pumps
Air-to-water and heat pump boilers, with placement and installation materials.
Air conditioning
Indoor and outdoor units, pipes and cables per metre, single and multi-split.
Charging stations
On the wall or on a pole, cable per metre and protection sized to the connection.
EMS
Compatible with the inverter, with the string details filled in for you.
Backup power
The right backup unit for the inverter and the connection.
Something else?
Working with a technology or a way of working that isn't listed here? Then we build the calculator you need.
Talk about custom work
AI that does real work
We know AI from the inside, just as we know the sector. Our software talks to your own AI agents, and we help you take the right steps: from a first idea to a solution that works.
- Automate actions
- Let an agent follow up on quotes, process documents or prepare the planning. You stay in control.
- Handle support
- An assistant that answers questions from your customers and your team, using your own documentation as its source.
- Build AI features
- Smart features in your own processes, custom-built and safely connected to your data.
- Advice without the hype
- We help you choose where AI really saves time, and where it gets you nothing.
Ready for your own agents
- APIAn API for HappERP and HappCore
- MCPMCP, the open standard that lets AI agents talk to software
We grow with you
Software alone doesn't make a business. Our team knows the sector from the inside and thinks along with you: at the start, at every growth step and whenever the way you work changes. Whether you run one crew or a hundred.
Tell us where you want to goGet to know you
First we learn how you work, from the first enquiry to after-sales. Only then do we propose anything.
Set up
We prepare your items, prices, calculators and documents, and help you move your existing data across.
Get started
We train your team and stay close during the first weeks.
Grow together
A new technology, an extra branch or a way of working of your own? We extend the system and build custom work.
- One familiar contact
- You call someone who knows your business and your account.
- From one crew to a hundred
- Multiple companies, brands and branches in one system.
- Help with every choice
- HappERP or HappCore, which apps, and what is better built custom? We work it out together.
Let's get acquainted
Tell us briefly how you work. We'll set up a call or a demo, with no obligation.
Rather call right away?
+32 89 39 59 38info@happit.beWeekdays from 9:00 to 17:30, Fridays until 15:30 (CET).
Thor Park 8300, 3600 Genk. Visits by appointment.Already a customer? Use the support button in HappERP or email support@happerp.com.