Energy advice & funding – new build and retrofit alike. In one app.
Your core business – energy advice and funding management – gets faster and safer, and with genuine retrofit supervision you open up a new revenue stream. All in one app, from before the retrofit roadmap onwards – now for new build (KFN/QNG) and apartment blocks too.
✓ Every Premium feature, unrestricted, for 30 days – no credit card.
Built by practitioners: 10 years of retrofit project management plus 30+ years of construction expertise.
Your existing business, more efficient – and a new revenue stream on top.
Energy consultants use Renaldo in two ways: to make advice and funding management significantly more efficient – and to offer genuine retrofit supervision as a new, billable service.
Core business: advise and fund more efficiently
Energy advice and funding management – from before the retrofit roadmap onwards. Retrofit calculator, GEG and BAFA checks, deadline tracker and AI bid checking: less spreadsheet work, fewer mistakes, more projects in the same time.
See the features → 2Extend your business: retrofit supervision as new revenue
Go beyond the advice: roadmap → funding-compliant bill of quantities, online contractor search and supervision through to delivery – for additional fees. Deliverable immediately with the app, and professionally underpinned by the retrofit-coach training.
See the features →The problem: after the roadmap, the whole job hangs on spreadsheets, email and a calendar.
That is exactly what Renaldo is for – energy advice, funding and retrofit supervision in one app.
Renaldo is built by someone who lives retrofitting
Not an anonymous software house: Gregor builds Renaldo directly along the working practice of energy consultants. In 60 seconds he explains why. (Video in German.)
From the survey to a number that holds.
The quantities come from the building data, the prices from the market — and out of that comes the bill of quantities for the tender, directly.
Costing without a quantity take-off
Quantities from the building, prices from the market.
You choose the work item. The quantity comes from your building and room data, the price from real regional contractor rates. No counting windows, no calculating wall areas.
The bill of quantities you never have to write
Straight from the configuration into the tender.
Your configuration becomes a tender-ready bill of quantities across every trade — with long descriptions, quantities and unit prices. From there straight into the local search and the online request.
The bid comparison that shows the gaps too
Every bid measured against your own bill of quantities.
The bids line up next to each other, item by item. What becomes visible is not only who is cheaper — but what the cheapest bid leaves out, and how much money that leaves open.
Advise with confidence. Fund faster. Earn more.
Three pillars, two levers: energy advice and funding management (pillars 1–2) make your core business more efficient, retrofit supervision (pillar 3) opens up a new revenue stream – all in one app, from the first energy assessment to delivery.
Energy advice
Energy metrics, retrofit calculator, GEG check and SAM – advise properly, before the roadmap even exists.
Funding management
Funding calculator, BAFA requirements check, deadline tracker and AI bid checking – claim every grant safely.
Retrofit supervision
Roadmap → funding-compliant bills of quantities and online contractor search – more service, more fee income.
Advise properly – before the roadmap even exists.
Existing data in – without entering it twice.
Already working with Hottgenroth, EVEBI and the rest? Renaldo takes your building and element data straight in – no retyping. Or just enter the address and Renaldo loads the official LoD2 building data at the click of a mouse. Which means the data basis for energy metrics, the retrofit calculator and the GEG check is ready in minutes rather than hours.
- Import from Hottgenroth & EVEBI – elements and metrics carried over
- LoD2 building data at a click, once you type the address
- Plus IFC files and Doorbit 3D scans
Energy metrics and the retrofit calculator at a glance.
Enter the address – Renaldo shows the building's current efficiency class and energy demand (kWh/m²a). The AI retrofit calculator proposes energy measures with costs, savings and the jump in efficiency class (before → after). Right there in the first conversation, long before the official roadmap exists – as a PDF, or live with the client.
- Efficiency class & energy demand (baseline → target) at a glance
- Retrofit calculator: measures with costs, savings & class jump
- PDF export, or invite the client in before the roadmap
The perfect starting point for any energy assessment.
Every relevant building figure at a glance – as a compact profile you can hand over as a PDF at the touch of a button, to external advisers too: efficiency class, energy demand (kWh/m²a), heating system, roadmap flag, floor area, rooms and storeys, build year and building class – plus areas, geometry and photovoltaics where present. It stays transparent where the data came from (LoD2, Doorbit scan, IFC, magicplan, EVEBI, Hottgenroth or manual entry) and whether it has been properly validated.
- Everything relevant in one place – including planned measures & documents
- Transparent data quality: source & validation, with a date
- A clean profile PDF for handover – to external advisers too
Do the measures meet German building-energy law? Element by element.
Renaldo checks, per building element – external wall, roof, windows, ground slab – whether the planned measures meet the requirements of the GEG. Including the 65 % renewables rule for heating, the boiler-replacement obligation by build year, and the deadlines of municipal heat planning. So your advice is compliant without leafing through the statute.
- GEG requirements checked per building element
- 65 % renewables rule & boiler-replacement obligation by build year
- Municipal heat-planning deadlines in view
Technical questions on GEG, funding and building physics – answered on the spot.
SAM answers your technical questions on German building-energy law, BAFA/KfW funding, building physics and standards – in the context of the project. Role-adaptive: it explains things to your client in plain language, and answers you in expert terms. So you have the answer to hand without a long search.
- GEG, BAFA/KfW, building physics & standards – in context
- Role-adaptive: plain language for clients, expert terms for you
- Quick questions right inside the energy-advice and funding areas
Claim every grant safely, miss no deadline.
Qualify bonuses, calculate grant amounts, track deadlines.
Real-time checking of all BAFA and KfW rules, including a guided qualification for the bonuses (speed, heat pump, roadmap, municipal). You see per measure what works under the funding logic. And the funding tracker keeps every application, deadline and piece of evidence in view – with reminders for you and for your client.
- Guided bonus qualification & grant amounts you can rely on
- Deadlines calculated automatically, reminders to both sides
- Preparing the proof of use without a file mountain
Minimum U-values per element – met at a glance.
Renaldo gives you the minimum U-values for the individual BEG measures and lists the insulation specified per element with its estimated U-value. So you can see immediately whether your measure meets the BAFA requirement – before the quote goes out.
- External wall ≤ 0.20 · roof ≤ 0.14 · windows Uw ≤ 0.95 · ground slab ≤ 0.25 W/m²K
- The insulation chosen per element, with its estimated U-value
- Requirement met? Visible immediately, before the award
AI bid checking for funding eligibility.
Upload contractor bids as PDFs – the SAM AI checks in seconds whether every minimum technical requirement for BEG funding is met (U-values, COP, seasonal performance factor, insulation thicknesses, material specifications). A single item caught justifies Renaldo for a whole year.
- PDF in, BEG compliance report out
- Concrete renegotiation notes per line item
- Protects your client from losing €5,000–15,000 in grants
Beyond the energy assessment – more service, more fee income.
Roadmap import → funding-compliant bills of quantities.
Upload an existing retrofit roadmap – Renaldo reads out the measures and matches them automatically to ready-made, BEG-compliant bills of quantities from our works database. Usable straight away for contractor requests, without spreadsheet DIY.
- Roadmap measures translated automatically into real work items
- Ready-made BEG-compliant work packages
- The basis for one-click online contractor requests
Online contractor search with the bill of quantities attached.
Once the measures are settled, you approach contractors in one click: local search + a ready-made BEG-compliant bill of quantities + an online request. Optional as an additional service for your clients – a clear added value that justifies your fee.
- Local search by postcode and trade
- Bill of quantities attached automatically – no spreadsheet ping-pong
- Bids comparable in one dashboard
Site supervision, tasks, document storage and the rest are further down under “Also on board”.
Your services as a finished fee proposal – awarded online.
Pour your services into a complete proposal, contract terms included – with modular service blocks that match your qualifications: from energy assessment (a retrofit roadmap with or without a building scan) through funding-application support to Renaldo service packages (optionally on the German HOAI fee scale too). Quantities and prices are pre-filled and editable – and via the basket, the costs flow straight into your client's budget. Once priced in, fees get questioned less and awarded faster.
- Service blocks per qualification – including the roadmap (with/without a building scan) & funding-application support
- Basket link: your fee lands directly in the client's budget
- Payment schedule, appendices & contract wording including the right-of-withdrawal notice, attached automatically
- Sent by email link – the client awards online without logging in, status per proposal
Your client in the same project – not in the CC line.
Other tools make energy advice more efficient. Renaldo makes it collaborative. As soon as you invite a client, they can upload documents, follow progress, configure measures further and request contractor quotes – and you still stay in control.
- The client uploads the energy certificate, floor plans and invoices themselves
- The client can see funding and project status at any time
- The client carries on independently with the retrofit calculator and the measures
- You get push reminders instead of an email avalanche
Now for every residential building – new build and retrofit, houses to apartment blocks.
Several residential units per assessment.
Assessments for apartment blocks, cleanly structured: buildings with cores and residential units, each with its own room schedule. Energy metrics, measures and grant amounts scale per unit – rather than everything in one flat list.
- Building → cores → residential units
- Funding & efficiency-house levels per residential unit
- Serial retrofit & apartment-block bonuses accounted for
New-build funding, not just retrofits.
For new-build schemes too: the right new-build funding (the German climate-friendly new build scheme / KFN, QNG, EH40) is taken into account – including the assumptions you are professionally responsible for. So you can support clients from retrofit through to new build out of one app.
- KFN / QNG / EH40 instead of BEG retrofit funding
- QNG toggle & new-build assumptions
- New build & retrofit in the same project workflow
And everything that rounds the job off.
Document management, task management, a mini CRM for your projects and clean PDF exports – the full project-management set around your advice.
Photo gallery & document storage
Structured by measure and trade. The client uploads independently – and you still have everything in one place.
Task list
Who does what by when – with owners, due dates, status and push reminders for the client and for you.
Project list (mini CRM)
All your projects at a glance – with status, next steps and filters by phase, funding programme and client.
PDF exports for your advice
Retrofit proposals, cost estimates, lists of measures and funding overviews – cleanly exported for your client meetings.
GDPR & German servers
All data hosted in Germany. You and your client can export or delete it at any time.
Financing PDF
Exported from the basket with a purpose of use – as the energy consultant you can validate and sign it for the financing application.
Funding and technical knowledge that keeps up with the rules.
In the Renaldo Academy you keep up to date with webinars and tutorials on GEG/BEG changes, funding updates and Renaldo workflows – so your advice stays current and defensible. Currently in German.
Cost truth from the very first click.
Renaldo thinks about every retrofit from the end backwards: a contractor's invoice is always work item × quantity × unit price – Renaldo determines all three and turns them into a reliable, tender-ready cost plan.
Work item
From a database covering more than 20 trades.
×Quantity
From your building and room data.
×Unit price
Real regional contractor rates.
One thread – in three phases.
The same three phases guide you inside the app: the task view shows what's next in each phase.
Plan & cost
Import the existing building or enter the address, assess it energetically (retrofit calculator, GEG check), configure the measures and calculate the funding – until the cost estimate holds up.
Tender & award
Approach contractors through the local search using the BEG-compliant bill of quantities, and check the bids for funding eligibility with AI.
Build & settle
Bring clients into the project, deliver it together, track funding deadlines and check invoices – you stay in control.
From design to handover – without a single break in the chain.
Design & costing, tendering & award, construction & handover – new build and retrofit alike, from single-family homes to apartment blocks. Every work item linked directly to the building and room data.
Costing across every trade – with ready-made bills of quantities and real contractor prices. Every work item linked directly to the building & room data.
Design & costing
- Building import (IFC)
- Drawing register
- Energy consulting module
- Funding module
- Financing calculator
- Material selection
- Apartment-block structure
- New build
Tendering & award
- Contractor portal
- Online contract award
- Bids + AI comparison
- Contractor address book
- Tendering-software / CSV export
Construction & handover
- Construction schedule & dates
- Defect management
- Site supervision
- AI invoice checking
Get started in 3 steps – with every Pro feature.
No hidden commitments. Try it first, then work at the starter rate – cancel monthly.
Try free for 30 days
The full feature set, no payment details. Take your time to see whether Renaldo fits your workflow.
6 months at the starter rate
Instead of €149 – for the first 6 months. Long enough to run your first projects through end to end.
From month 7: standard rate
Plus VAT. Cancel monthly – no lock-in, no minimum term.
All prices plus VAT. Cancel monthly. Your data stays exportable at any time.
Rather start with the basics? On the Renaldo Start plan you can set up unlimited projects as a building professional – and unlock Expert Pro whenever you're ready.
Expert Pro for energy consultants.
- AI bid checking including BEG funding-eligibility checks
- Funding tracker with deadline reminders
- Pre-roadmap retrofit calculator with PDF export
- Roadmap import → BEG-compliant bills of quantities
- Hottgenroth, EVEBI, IFC & Doorbit import
- Unlimited projects & client invitations
- GDPR-compliant & German servers
Common questions from energy consultants.
Ready to turn your energy advice into genuine retrofit supervision?
Try Renaldo free for 30 days – or let us show you in a 30-minute demo how your roadmap, funding expertise and client relationships become a supervised retrofit project.