Merchant energy
Buy low, sell high across day-ahead, intraday and real-time.
Highest upside, highest volatility — the optimiser decides every cycle.
How a Battery Gets Paid.
Available now
Grid-scale battery storage from first principles to the revenue stack — why storage exists, what you are actually buying, where the money leaks out between nameplate and the meter, and how arbitrage, capacity markets and ancillary services combine into a business case you can defend. Want the written version first? The free revenue-streams deep dive covers the same ground on monetizing a battery, in article form.
Student or early-career engineer? The Complete Guide is free for you, and every specialist course and the bundle are 50% off. The student discount does not combine with any other discount, early bird included. How to claim it
This is a separate specialist course, not a section of the Complete Guide the same instructor sells on Udemy. What differs
Secure checkout by Stripe — card, Apple Pay and Google Pay. The lines under each price say whether tax is included and, where we can estimate it, about what Stripe will show in your own currency.
For developers, investors and commercial leads, and engineers moving toward the money side. Assumes you can read a spec (MW, MWh, a one-line diagram). Who it's for
Company paying? We can invoice your employer — email sergey@bess.courses with the course and your company name. After your company's paperwork, the invoice arrives by email within 24 hours, due in 30 days; access starts as soon as it is sent.
One-time purchase with lifetime access — no subscription. Your access link arrives by email within minutes of payment; the course streams in your browser, in your classroom at training.bess.courses. The email you enter at checkout receives the access link and becomes the student account — buying for someone else? Enter their email at checkout. Already a student? Use the email you sign in with. Certificate of completion included — issued by BESS.courses, verifiable at bess.courses/verify. It is a completion record, not an accredited professional certification: as of 2026 there is no accredited BESS-engineer certification to hold. What the credentials actually are.
Not sure it is for you? Full refund within 7 days of purchase, provided less than half the course has been completed — one email to sergey@bess.courses. Consumer rights that apply where you live are unaffected. If the access email ever fails to arrive, write to sergey@bess.courses and a human will sort it out. Also included in the Professional bundle — all five courses in one purchase.
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Watch the introduction.
What the course covers, who it serves and how it is taught — from the instructor.
Three ways a battery earns — and they interact.
Most explanations stop at listing the markets. This course spends its second half on how they trade against each other: stacking them, watching the best-paying pool saturate, and deciding what the asset does next.
Capacity market
Paid to be available, against a delivery obligation.
The bankable floor — but duration-based de-rating decides how much you actually get.
Ancillary services
Frequency response and reserves, where speed and symmetry pay.
The original cash cow — and the first pool to compress as more BESS arrives.
Ancillary services get a full module here, not a bonus slot: the capstone model uses those concepts directly, so they belong in the main sequence.
Every lecture, with its runtime.
26 recorded lectures across 10 sections — Start Here, eight modules and a capstone. Over a quarter of the runtime goes to Module 3, because that is where financial models usually go wrong.
00 Start Here: course promise & roadmap What the course covers, who it is for, and how the worked examples build on each other.
- 0.1 Welcome: how a grid-scale battery gets paid — and who this course is for 1:55
- 0.2 Your BESS learning roadmap: outcomes, examples & instructor 4:07
01 Why battery storage exists The flexibility problem, the duck curve, and the market forces behind BESS growth.
- 1.1 Why battery storage exists: renewables, grid inertia & falling costs 6:19
- 1.2 The duck curve explained: the BESS opportunity 4:47
- 1.3 BESS market growth: why Europe & Great Britain matter 2:55
02 What you are actually buying Open the box: site anatomy, MW and MWh, duration, chemistry, revenue fit and supplier bankability.
- 2.1 Utility-scale BESS anatomy: from battery containers to the grid 2:54
- 2.2 MW, MWh, duration & C-rate: four numbers every BESS professional needs 4:01
- 2.3 Choosing battery duration: match the system to the revenue market 2:57
- 2.4 LFP vs NMC — and beyond lithium: choosing grid-scale storage 5:08
- 2.5 What BESS buyers really buy: bankability, guarantees & OEM assurance 3:30
03 The hidden costs: from nameplate to bankable output Turn marketing ratings into defensible project numbers — losses, degradation, RTE, guarantees and OPEX.
- 3.1 The hidden costs of storage: why BESS financial models go wrong 3:49
- 3.2 From nameplate to POI: usable energy, losses & auxiliary loads 9:35
- 3.3 Battery degradation & augmentation: planning the full asset life 4:48
- 3.4 Round-trip efficiency explained: the loss every BESS model must include 3:15
- 3.5 BESS performance guarantees: LTSA, warranties & availability 4:36
- 3.6 BESS OPEX: five costs every revenue model must include 3:32
- 3.7 Worked BESS example: from nameplate capacity to delivered energy 6:35
04 How a battery gets paid The revenue equation, the three market types, and the risk spectrum from merchant to contracted.
- 4.1 How a BESS gets paid: the revenue equation & three market types 8:40
- 4.2 Merchant, floor or tolling? Choosing a BESS offtake model 7:48
05 One asset, many jobs How a battery stacks services — and why success drives saturation and migration to new revenue pools.
- 5.1 BESS revenue stacking: how markets boom, saturate & migrate 7:57
06 The merchant engine Price-spread trading, the market venues, optimiser decisions, and when a cycle is actually profitable.
- 6.1 Battery arbitrage: day-ahead, intraday & real-time trading 8:12
07 The bankable floor Capacity auctions, delivery obligations, clearing prices, and why de-rating drives financeability.
- 7.1 Capacity markets for BESS: auctions, de-rating & bankable revenue 6:35
08 The original cash cow: ancillary services Why BESS speed and symmetry suited frequency services — then the saturation cycle in hard numbers.
- 8.1 Why batteries dominated frequency response: the original BESS cash cow 6:32
- 8.2 Grid frequency markets explained: regulation, reserves & ERCOT 7:15
- 8.3 The ancillary-services catch: how BESS success compresses prices 4:09
C Capstone: build the revenue stack One interactive 50 MW / 200 MWh case combining capacity, arbitrage, ancillary services, RTE and costs.
- C.1 Build a BESS revenue stack: interactive 50 MW / 200 MWh case study 8:56
26 lectures across 10 sections. Every section is listed here in full — nothing is hidden until purchase.
Runtimes are the finished recordings, each rounded to the nearest second; the published total is 2:20:48.
All 26 lectures are published. Buy this course →
Six things you can do afterwards.
- Read a BESS spec and say what MW, MWh, duration and C-rate actually commit the project to.
- Walk nameplate capacity down to delivered energy at the point of interconnection, loss by loss.
- Separate usable-energy reductions from electrical efficiency instead of double-counting them.
- Choose between merchant, revenue-floor and tolling structures on risk, not on headline price.
- Explain why a saturating ancillary-services market is the predictable consequence of BESS success.
- Build a revenue stack for a 50 MW / 200 MWh project and defend every line in it.
The commercial half of a BESS project.
Written for developers, investors and commercial leads who need to defend a business case, and for engineers moving toward the money side of the work. You need to be comfortable reading a spec — MW, MWh, duration — but no finance background is assumed; the revenue equation is built from scratch.
It pairs naturally with BESS Engineering Foundations: that course explains why the losses exist, this one explains what they cost you.
Prerequisites: none formally — you need to be comfortable reading a spec (MW, MWh, a one-line diagram). The Grid-Scale Complete Guide builds that comfort if you want the full system picture first.
Build a 50 MW / 200 MWh revenue stack.
The final lecture is an interactive model, not a summary. Capacity revenue, arbitrage spreads and ancillary-service income are layered onto one Great Britain case, then round-trip efficiency and operating costs are subtracted until what is left is the number an investment committee would actually see.
Market figures carry visible sources and as-of dates. Storage-market numbers move fast, and a course that quotes them without a date is quietly going out of date.
Taught by the same instructor as the Complete Guide.
I'm Sergey Syrvachev. I've worked in energy and product since 2010, and in battery storage since 2020 in clean energy, building BESS, inverter, and EMS product lines from cell chemistry to grid integration.
This course distils the revenue side of that work — the part every engineering decision ultimately answers to. The Grid-Scale Complete Guide and its reviews are the track record.
- Director of Product Engineering at HyperStrong, a grid-scale BESS integrator
- In energy & product engineering since 2010; in battery storage since 2020
- Built a BESS configuration toolset that cut configuration time from hours to 15 minutes
- PMP, PSM I, PSPO, Lean Six Sigma Black Belt
Instructor photo / Sergey Syrvachev Published, complete, and yours immediately.
All 26 lectures are published. Buy it now — and the complete Grid-Scale BESS course covers the engineering this economics course builds on.
Related deep dives: BESS Warranties, LTSA & Performance Testing takes lecture 3.5 apart over four hours, and Fire Safety for BESS covers the risk this course prices but does not engineer.