---
title: "Building services tenders: BoQ and equivalence in Ziva"
description: "Ziva reads the bill of quantities, preliminaries and contract, lists product clauses and duties with sources and prepares equivalence evidence."
canonical: "https://zephior.com/industries/building-technology"
last-updated: 2026-11-13
---

# Building technology: every duty in the BoQ found. Your system, properly evidenced.

Ziva recomputes the output, finds every named product and sets up the equivalence table.

- [Start your subscription](https://zephior.com/pricing?intelligence=false&projects=true)
- [Prices and plans](https://zephior.com/pricing)
- [Book a call](https://cal.com/tony-kim-i92zqp/introduction-synergy-exchange)

## The tender on this page

- SIMAP 47019: [Ecole du Mervelet (2380TI) photovoltaïque](https://www.simap.ch/de/project-detail/312cb965-7ef9-4c36-8e68-7e4e24551fc4)
- Buyer: Ville de Genève, Département de l’aménagement, des constructions et de la mobilité
- Procedure: Procédure ouverte
- Offers due: 16 December 2026, 11:00
- Public tender, worked by a fictional sample company. Nothing was submitted. Sample company: Arve Énergie Technique SA (fictional).

## From the bill of quantities to the offer, every duty in its place

### Does the output match the inverters?

The output appears nowhere as a number. Ziva computes it per zone and checks it against the inverters.

Screenshot: The “Puissance” sheet in Ziva: installed output per zone computed from the quantities, with the inverters and the DC to AC ratio.

### A named product, and the equivalence proof is on you

Ziva lists every product-bound item with its properties. You enter your model; the table computes the gap.

Screenshot: The “Équivalences” sheet in Ziva: product-bound items with the named product, the required property and fields for your model.

### Who supplies, who connects, who certifies?

It sits in item texts, not lists. Ziva compiles who does what, each with its page.

Screenshot: The École du Mervelet bill of quantities in the original in Ziva, page 3: the roof system with product rules and the electrician’s scope.

## One Geneva photovoltaic tender, from output to proof

From the notice and BoQ; output computed by Ziva.

- 103 kWp: installed output in two zones
- 40 %: weight of the price
- 3 months: of works

1. **Output** (Ziva): Output per zone, checked against the inverters.
2. **Who does what** (Ziva): Your lot, the electrician and the client, each with its page.
3. **To clarify** (Ziva and you): What to clear up before offering an equivalent. You decide what to ask.
4. **Bill of quantities** (Ziva and you): Product-bound items in the original, for your technician.

## What you have in hand

- **Duties and responsibilities** (pdf): In one view, with sources
- **Equivalence evidence** (docx): With values from your data sheets
- **Calculation** (xlsx): Formulas in place, prices from you
- **The buyer’s forms** (docx): Filled in, ready to sign
- **Questions to the buyer** (docx): In the language of the tender

## Managed option: Zelius

**Prefer we run the bid?** Our team takes on the evidence, the forms and the questions to the buyer. The engineering and the prices stay with you.

- [Book a call](https://cal.com/tony-kim-i92zqp/introduction-synergy-exchange)

## Frequently asked questions

### Does Ziva spot named products in the BoQ?

Yes. Ziva flags items naming a brand, a system or “or equivalent”, with their place.

### Does Ziva design or size the installation?

No. Design, sizing and prices stay with your engineers.

### Can Ziva read crbx files?

Yes, and the BoQ as a PDF too.

## Related reading

- [Tender support for construction services suppliers](https://zephior.com/industries/tender-support-for-construction-services)
- [How to coordinate prime and subcontractor bid commitments](https://zephior.com/industries/coordinate-prime-and-subcontractor-bid-commitments)

## Other industries

- [Construction and trades](https://zephior.com/industries/construction)
- [Engineering and planning](https://zephior.com/industries/engineering-planning)
- [IT and software](https://zephior.com/industries/it-software)
- [Agencies and creative](https://zephior.com/industries/agencies-communication)
- [Consulting and HR](https://zephior.com/industries/consulting-hr)
- [Education and training](https://zephior.com/industries/education-training)
- [Facility services](https://zephior.com/industries/facility-services)
- [Products and supplies](https://zephior.com/industries/products-supply)
- [Medical and lab](https://zephior.com/industries/medical-lab)
- [Transport and logistics](https://zephior.com/industries/logistics-transport)
- [Printing and language](https://zephior.com/industries/printing-language)