New: Module 5 — The Project Lifecycle is live

Battery Energy Storage Systems

The BESS course
that didn't exist.

The structured onboarding the industry never built — from technology and commercial models to project delivery and compliance. Built for anyone entering or growing in the BESS industry.

By engineers who have delivered GWh of utility-scale BESS projects.


What you'll cover

Work through in order or jump to what you need. Module 1 is free.

Module 1Free

BESS 101 — What is a Battery Energy Storage System?

What is BESS and how does it work? A clear introduction to utility-scale battery energy storage — what it is, why it exists, how it generates revenue, and where the industry is heading.

10 min
Module 2Full access

BESS Technology Stack — DC Blocks, PCS, Transformers & Power Plant Controllers

The equipment and technology of a utility-scale BESS plant. DC blocks, PCS, AC blocks, MV infrastructure, HV substations, and the control stack explained.

25 min
Module 3Full access

BESS Value Chain — Who Does What in Energy Storage Projects

The key stakeholders in a utility-scale BESS project — developers, EPCs, manufacturers, asset owners, service providers, RTM providers, lenders, and insurers.

25 min
Module 4Full access

How BESS Makes Money — Revenue Streams & Market Mechanics

How utility-scale BESS generates revenue from FCR, FFR, aFRR, energy arbitrage, and capacity markets. Revenue stacking, market evolution, and net revenue factors.

20 min
Module 5Full access

BESS Project Lifecycle — Development, Construction, Commissioning & Commercial Operation

BESS project lifecycle — how utility-scale battery projects move from origination through financing, construction, commissioning, and commercial operation.

35 min
Module 6Full access

Grid Compliance & Safety

Grid connection requirements, grid codes, fire safety, thermal runaway, insurance, fire response strategies, EU Battery Regulation, NIS2, and regional differences.

30 min  ·  Coming soon
Module 7Full access

What Makes a BESS Project Bankable

Technical, commercial, and safety bankability — supplier credibility, revenue certainty, insurance, certification. The concept that ties everything together.

25 min  ·  Coming soon
Module 8Full access

End of Life & Recycling

Decommissioning, second life, recycling obligations, EU Battery Regulation end-of-life requirements. Completes the full BESS lifecycle from development to disposal.

20 min  ·  Coming soon

Go deeper

After the fundamentals, explore specialist guides on standards, regulations, and technical procedures.

Browse Specialist Guides →

Who it's for

The BESS industry is growing fast. The structured onboarding didn't exist — until now.

⚡️

Career switchers

Coming from solar, wind, oil & gas, or electrical engineering? BESS has its own vocabulary, mental models, and commercial logic. This course closes the gap.

🏗️

New hires

Just started at a BESS company? Get the foundation that makes you effective from day one — instead of spending months piecing it together on the job.

🎯

Teams & managers

Onboarding new team members into BESS? Use learnBESS as structured training — so they're productive from week one, not month three.

📐

Industry professionals

Already working in BESS? Specialist guides cover standards, regulations, and compliance topics that cut across roles — from engineering to procurement to legal.



Start with Module 1 — it's free.

No account needed. No credit card. Get full access to all modules.