ZEUS Core: an energy offer in minutes.
A tailored energy offer used to cost sales reps hours of calculations and paperwork. ZEUS Core brings the whole sale into one system: the rep prices electricity or gas, sends a PDF offer, the customer signs electronically and commissions are calculated automatically. A custom project for Pražská energie became a product of its own.

From a custom system to a product of its own
Pražská energie a poradenství supplies electricity and gas to businesses and households and helps them save. A tailored energy offer is complicated: distribution tariffs, peak and off-peak prices, regulated charges, taxes. The contract follows right after. Without a system that means hours of work, and every mistake costs money. In July 2025 we started building a system to take that work over.
The rep enters consumption and tariff, AI helps pre-fill the calculation and the system works out the price with every regulated component. The PDF offer is ready in a few minutes. The customer signs the contract electronically, with no printing or scanning. Commissions for reps and partners are calculated automatically from the rate card, and the whole deal is visible in the CRM.
In 2026 we added a customer portal and a community energy module, which handles electricity sharing between members of an energy community, billing included. The system became the ZEUS Core product, now developed by a separate company, Zeuscore s.r.o., with Marqio as its technical partner.
Challenge
A tailored energy offer means working out distribution tariffs, rates, regulated charges and VAT, then preparing a contract straight away. Without a system it takes hours and mistakes are expensive. Sales reps end up spending much of the day on admin instead of selling.
Solution
An electricity and gas calculator with every regulated component, a PDF offer in one click, e-signed contracts, automatic commissions for the whole sales network, a CRM with a deal overview and a customer portal. Everything works from the same data, so nothing gets retyped.
Result
Offers and contracts take minutes instead of hours. Reps retype nothing: the calculation becomes the offer, the offer becomes the contract and the contract drives the commission. Live electricity market prices load every hour, and community energy, billing included, is in live use.
A year of development: from calculator to community energy
- 03/2025
Interface design
Interface design for the internal system and a new website for Pražská energie.
- 07/2025
Development starts
A brief with six modules and the start of development.
- 08–12/2025
Pricing, CRM and contracts
Calculator, CRM, deals, e-signature, commissions and training for sales reps.
- 01/2026
A product of its own
Zeuscore s.r.o. takes the platform over as its own product, with Marqio staying on as technical partner.
- 02–08/2026
Portal and community energy
Customer portal, hourly market prices, energy sharing in communities with billing, and the mobile app connected.
The whole energy sales process in one system
- Electricity and gas calculator with every regulated component and VAT
- An AI helper that helps pre-fill the calculation
- A PDF offer in one click
- CRM: clients, contacts, enquiries and deals with close probability, company details filled in automatically
- Contracts with e-signature and an archive
- Commissions by rate card and rep seniority, with monthly statements
- Community energy: groups, generation sites, balances and billing for shared electricity
- Live electricity market prices with alerts when prices are good
- Customer portal: contracts, consumption, documents, assistant
- Courses, tests and certificates for sales reps
What the system delivered
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