International BESS advisory · independent

BESS project development —
from first site to settled trade.

BESS project development —from first site to settled trade.
BESS project development —from first site to settled trade.
BESS project development —from first site to settled trade.
BESS project development —from first site to settled trade.
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
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

It started with batteries in 1985 — as battery charging warden for a helicopter squadron, running the pilots' aircraft batteries and the airfields' power supply. Forty years on, batteries are still the work: more recently making loads follow the price with Shelly and Loxone, and now 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 with batteries & powerIndependent35+ 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