International BESS advisory · independent

BESS project development —
from first site to settled trade.

Independent, full-lifecycle battery storage development. We take a project from a map pin to a battery that trades the market every day — vendor-neutral, register-true, and benchmarked against the perfect-foresight ceiling (the Decke).

📞 +49 5223 4921030
Battery storage project development
From first site to settled trade — independent, full-lifecycle BESS development.

What we do

Four pillars — take all of it, or just the piece you need.

⚡ Arbitrage optimization & marketing

Dispatch optimization, the Decke benchmark, revenue and marketing strategy, and reconciliation of model against real settlement. The core engine, applied to your asset.

📐 Site & feasibility

Location and grid screening, business case, and an independent bankability view — the honest number before you invest, not the vendor's.

🏗️ Full project development

Site, permitting, grid connection, sizing and technology selection, and steering EPC/partners all the way to commissioning.

🤝 Brokerage & partners

We qualify your project and connect it to the right EPC and investors — and stay alongside through delivery.

Your guide — Holger Roswandowicz

In energy since 1984. I started where most operators still are — making loads follow the price with Shelly and Loxone. Two years ago that became the practice it was always meant to be: batteries trading the power markets, optimized to the arbitrage ceiling.

I work independently — no hardware to sell, no trading book of my own. That is the whole point: a neutral, register-true number you can take to your bank, your board, or your investor — across 35+ markets, Europe and worldwide.

40+ years in energyIndependent35+ marketsRegister-true dataHR Energiemanagement GmbH

How we work

1 · Read

We compute your market's Decke and screen the site — public data, days not months.

2 · Decide

An independent business case & bankability view. Go / no-go with real numbers.

3 · Build

Development, permitting, grid, sizing — EPC and partners steered to commissioning.

4 · Trade

Arbitrage optimization live, reconciled against settlement. The battery earns.

Have a site, a battery, or a question?

Call directly — or leave your details and we'll come back to you. International inquiries welcome.

📞 +49 5223 4921030