Energy Suppliers:

Earn €250 more per

Romanian Household

Each Year

Trusted by Top Companies in the Energy Sector

Trusted by Top Companies in the Energy Sector

4 Alarming Signals from Romania

4 Alarming Signals from Romania

3x

higher imbalance costs in Romania

vs. EU average, driven by unmanaged PV.

63%

yearly surge in home PV installs,

fueled by subsidies, raises need for storage.

5%

of customers (all PV)

make up one-third of imbalance costs.

€20

monthly imbalance loss per 10 kWp rooftop PV

from uncontrolled overflows.

Stop Overflows. Gain an Extra €250 per PV Each Year

Delta Green Flex Suite is our proven energy management platform, trusted by suppliers like E.ON across Europe. It gives you full control over customer flexibility and turns unmanaged PV into predictable value.

By aggregating your PV portfolio in the Flex Suite, you create a virtual power plant that unlocks hidden revenue streams across multiple energy markets.

Our partnership with Delta Green has proved to be an above-expectations success.

Claudia Viohl

Claudia Viohl

Claudia Viohl

CEO at E.ON Czech Republic

CEO at E.ON Czech Republic

CEO at E.ON Czech Republic

PV Curtailment

Turning off PV overflows is the easiest way to start monetizing flexibility. It is the low-hanging fruit that turns customer solar into extra profit, without affecting comfort or consumption habits.

98% self-install success with Delta Link IoT router.

Direct trading access to customer data via Dispatcher.

Prevent losses with instant auto/manual overflow control.

Unlock More Value from Flexibility

Unlock More Value from Flexibility

Imbalance Management

Cut imbalance costs by automatically shifting supply or demand in real time, based on grid conditions and price signals.Turn smart homes into a new income stream by unlocking their energy flexibility.

See how E.ON built a profitable, flexible portfolio.

Read Case Study

Ancillary Services

Tap into TSO balancing programs by pooling household devices into certified flexibility blocks and unlock one of Europe’s most lucrative markets.

Learn how we certified 400 households for ancillary services.

Read Case Study

Intraday Trading

Profit from short-term price swings by steering household demand and supply throughout the day. With real-time data and forecasts, you can act fast and secure value before markets close.

Delta Green is a reliable and highly advanced grid balancing partner.

Martin Kašák

Martin Kašák

Martin Kašák

Section Director at ČEPS (Czechia’s national TSO)

Section Director at ČEPS (Czechia’s national TSO)

Section Director at ČEPS (Czechia’s national TSO)

Dominate Romania Before Others Catch Up

Dominate Romania Before Others Catch Up

Grow
Revenue

Turn smart homes into a new income stream by unlocking their energy flexibility.

Win
Customers

Create solar offers no competitor can match by building flexibility into your tariffs.

Cut
Costs

Avoid unnecessary system charges by automating when and how energy is used.

Lead the
Transition

Make real progress on decarbonization by activating flexibility in everyday homes.

Our Case Studies

Our Case Studies

E.ON CZ Boosts Customer Value By €200/Year With Flexibility

Learn more

Learn more

Learn more

Learn more

First Comertial Residential Battery Block For aFRR

Learn more

Learn more

Learn more

Learn more

We Make Extra €30 Per Customer. And They Love Us For It

Learn more

Learn more

Learn more

Learn more

Start now,
launch in 2 months

01

Free Trial

0 eur

2 weeks

What you get

5 connected households

access to our client platform and demo customer app

What you learn

How to onboard customers

How does the interface look like

02

Limited Roll-out

On Request
Up to 2 months

What you get

50 connected households

Branded and fully operational customer app

Expert sessions to help you to prepare for full launch

Full support with integration

What you learn

Validation of your value proposition

How to steer the assets of your customers

How to create and communicate product proposition

How to set up internal processes according to legislation

03

Full Launch

What you get

Run and maintain your client platform and customer app

Provide L2 support and updates

What you learn

Pioneer status on your market

The best customer offer on your market

New revenue stream from your solar customers

01

Free Trial

0 eur
2 weeks

What you get

5 connected households

access to our client platform and demo customer app

What you learn

How to onboard customers

How does the interface look like

02

Limited Roll-out

On Request
Up to 2 months

What you get

50 connected households

Branded and fully operational customer app

Expert sessions to help you to prepare for full launch

Full support with integration

What you learn

Validation of your value proposition

How to steer the assets of your customers

How to create and communicate product proposition

How to set up internal processes according to legislation

03

Full Launch

What you get

Run and maintain your client platform and customer app

Provide L2 support and updates

What you learn

Pioneer status on your market

The best customer offer on your market

New revenue stream from your solar customers

Tested and Trusted across Europe

15 years of history as an Electricity Supplier in Central Europe

Supplying electricity to more than 7000 households

Over 1,000 Delta Green customers already using our spot optimisation and flexibility

Successful trial run of balancing the grid with Czech TSO ČEPS. Read the case study here

Partnership with E.ON, deploying our B2B software across their user base

Who is Delta Green

And Why We Innovate

We Build Flexible Tariffs Of The Future

We care about the world we all live in and its future. The energy transition is a crucial part of mitigating climate change, and to help it succeed we need practical solutions, fast.

Smart use of all devices connected to the grid is essential in this as it allows us to maximise the share of renewable energy while making energy cheaper, in the end benefitting everyone also financially. Our goal is to pioneer household flexibility with our cutting edge technology.

Jan Hicl

Jan Hicl

Jan Hicl

CPO of Delta Green

CPO of Delta Green

CPO of Delta Green

What took us two years, you can have in two months.

Delta Green Ltd.

VAT ID: CZ02406233
Opletalova 1603/57,

110 00 Prague 1

info@deltagreen.energy

© 2025 Delta Green

Delta Green Ltd.

VAT ID: CZ02406233
Opletalova 1603/57,

110 00 Prague 1

info@deltagreen.energy

© 2025 Delta Green

Delta Green Ltd.

VAT ID: CZ02406233
Opletalova 1603/57,

110 00 Prague 1

info@deltagreen.energy

© 2025 Delta Green

Delta Green Ltd.

VAT ID: CZ02406233
Opletalova 1603/57,

110 00 Prague 1

info@deltagreen.energy

© 2025 Delta Green