Vire — Data Center Energy Simulator

Total demand — MW

LCOE —

Renewable — %

Annual CO₂ — kt

Status —

Click a highlighted substation to connect

Energy copilot. Ask it to design and site a data centre — it runs the optimizer and the 50 Hertz site scan, then saves results to your Aiven Postgres database through the Aiven MCP, so you can compare runs later.

Find the best site and energy configuration for a 120 MW load, then chart the cost Optimize a 90 MW load in Frankfurt and pick the best 50Hertz site Optimize my uploaded load profile and save the run Rank my saved runs by LCOE

50Hertz · KraftNAV

Grid Connection Process

Connection process for data centers to the 50Hertz transmission grid. Hover over each phase for details. Typical total duration: 6–18 months. Legal basis: KraftNAV (BGBl. 2024) · 50Hertz Grid Connection.

1 Grid Con-
nection Request

Applicant

Grid Connection Request

Formal application for grid connection with complete technical documentation: required load (MW), voltage level, site location, planned construction schedule. Submitted to the responsible transmission system operator (TSO).

Required information per § 3 KraftNAV. Missing data → application is returned.

Fee: €1,000 / MW connection capacity

2 Application
Review

50Hertz

Application Review

50Hertz reviews completeness and basic feasibility of the grid connection request. If documents are missing, the applicant is asked to provide the missing data.

~1 week

§ 4 Para. 1 KraftNAV

3 Scope &
Cost Notice

50Hertz

Scope & Cost Notification

50Hertz communicates the scope of the feasibility study and associated costs. The applicant makes a 25% advance payment on study costs to proceed.

~1 week after complete application

25% advance payment by applicant

§ 4 Para. 2 KraftNAV

4 Feasibility
Study

Joint

Grid Connection Review / Feasibility Study

Technical review of the requested grid connection point. 50Hertz may propose an alternative connection point if the requested one is technically not feasible.

~3 months (extendable with applicant's consent)

Extension possible for additional review requirements outside 50Hertz's area of responsibility. See § 6 KraftNAV.

5 Reservation
Fee (75%)

Applicant

Reservation Fee & Connection Commitment

Following a positive feasibility result, the applicant pays the remaining 75% of the reservation fee. 50Hertz then issues the formal connection commitment.

If conditions under § 4 Para. 3 KraftNAV are not met, the reservation lapses (STOP).

75% balance payment of reservation fee

6 Contract
Negotiation

Joint

Contract Negotiation (NAV + AEV)

Negotiation and signing of the grid connection agreement (NAV) and the connection facility agreement (AEV). Includes drafting of the implementation schedule.

NAV to be concluded within 12 months

§ 5 Para. 2 and 4 KraftNAV

7 Implementation
Schedule

Applicant

Implementation Schedule & Construction Start

The applicant submits the implementation schedule as part of the grid connection agreement. Construction and commissioning of connection infrastructure begin per the agreed timeline.

§ 4 Para. 5 and 7 KraftNAV

50Hertz Steps Applicant Steps Joint Steps

Find a grid connection point?

Identify available 50Hertz substations on the site map and estimate connection costs.

1 Site Select location

Pick your connection point on the map — it appears below and unlocks Next. Hessen / Frankfurt available now; more regions soon.

No spare switchgear bays at this site

2 DC Config

Selected site

—

Site & compute load ▶

IT load 90 MW

Static Upload load profile ↓ Template

ⓘ

Choose fileno file chosen

PUE i 1.35

3 Energy

Solar PV ▶

Capacity 0 MWp

Yield profile

Site dataset Upload yield ↓ Template

ⓘ

Choose fileno file chosen

Land required 0.00 km²

≈ 10 MWp / hectare · utility-scale ground-mount

Battery ▶

Energy

0 MWh

Power (4h)

0 MW

Grid services

Revenue €100k/MW·yr

Committed power 60%

FCR/capacity availability · reserved MW can't arbitrage or back up

Price arbitrage · charge cheap, discharge dear

Firm backup ▶

Capacity 0 MW

Firm type

Backup fuel autonomy 72 h

on-site fuel / H₂ at rated firm output · sets the islanded survival time

4 Economics

50Hertz region estimates

Use live ENTSO-E prices (Aiven) — falls back to dataset if unavailable

Gas price €40/MWh

CO₂ price (ETS) €80/t

carbon cost on fossil firm fuel · fuel cell / H₂ exempt

Firm run-hour limit 500 h/yr

emergency-backup cap (MCPD/IED) · fuel cell / H₂ exempt

Price profile

Site dataset Upload price ↓ Template

ⓘ

Choose fileno file chosen

IT load coverage

—

Grid Solar Battery Firm

3D SCENE

Data halls

Solar field

Battery yard

Firm backup

Substation / grid

hour —

24h dispatch (design day) Battery state of charge Year heatmap Solar outlook Outage risk Grid draw Firm Shortfall Price Worst week →