How to optimise BESS profitability through arbitrage? | Stromfee<meta name="description" content="How to optimise BESS profitability through arbitrage? An arbitrage dispatch plan is the algorithmic control module of a battery energy storage system (BESS), which adjusts the state of charge (SoC) based on dynamic markets"> <link rel="canonical" href="https://stromfee-mauritius.ai/en/glaesern/bess/wizards/arbitrage-fahrplan/"> <script type="application/ld+json">{"@context": "https://schema.org", "@type": "Article", "headline": "How to optimise BESS profitability through arbitrage?", "mainEntityOfPage": "/glaesern/bess/wizards/arbitrage-fahrplan/", "description": "Arbitrage-Fahrplan — Component in battery storage. Regulatory framework: EnWG/StromNZV."}</script> <script type="application/ld+json">{"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What is an arbitrage dispatch plan for a BESS?", "acceptedAnswer": {"@type": "Answer", "text": "An algorithm that controls the timing of charge and discharge cycles based on current electricity market prices."}}, {"@type": "Question", "name": "How does the dispatch plan influence profitability?", "acceptedAnswer": {"@type": "Answer", "text": "It enables selling energy at peak prices and buying at low prices, which reduces the payback period of the BESS."}}, {"@type": "Question", "name": "What role does the EnWG play in the arbitrage dispatch plan?", "acceptedAnswer": {"@type": "Answer", "text": "The EnWG defines the framework for trading and grid integration, which must be strictly complied with when programming the dispatch plan."}}, {"@type": "Question", "name": "From when is a BESS profitable for arbitrage?", "acceptedAnswer": {"@type": "Answer", "text": "Profitability depends on the daily price spread, battery degradation costs, and specific grid fees."}}, {"@type": "Question", "name": "How is the state of charge (SoC) integrated into the calculation?", "acceptedAnswer": {"@type": "Answer", "text": "The SoC serves as a physical limit; the dispatch plan must ensure that the battery is never overcharged or discharged too deeply, while waiting for the optimal time window."}}, {"@type": "Question", "name": "Why is an accurate forecast important for the arbitrage dispatch plan?", "acceptedAnswer": {"@type": "Answer", "text": "As electricity prices are volatile, the system requires forecasting models to make the correct decision between storage and immediate injection."}}]}</script> 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class="wrap navrow"> <a class="brand" href="/glaesern/bess/">◈ Transparent BESS</a> <nav class="nlinks"><a href="/glaesern/bess/">All trades</a> <a href="/glaesern/bess/strategie.html">Strategy & Yield</a></nav> <a class="navcta" href="#kontakt">Installation check →</a></div></header> <div class="hero-w"><h1>Arbitrage planning</h1><p>Component assistant · Strategy & Yield</p> </div> <div class="wiz-wrap"> <div id="steps"> <div class="st" data-s="1"><span class="no">1</span> Comprendre </div> <div class="st" data-s="2"><span class="no">2</span>View live</div> <div class="st" data-s="3"><span class="no">3</span>What the AI does</div> <div class="st" data-s="4"><span class="no">4</span>Your profit</div> </div> <div id="body"></div> </div> <div class="sec"><h2>Diagram — Process & sensors live</h2><p class="lead">The path through the domain, with the actual measurement points of the installation.</p><svg viewBox="0 0 920 300" style="width:100%;height:auto;background:#fdfcff;border:1px solid #fed7aa;border-radius:16px"><defs><linearGradient id="bx" x1="0" y1="0" x2="0" y2="1"><stop offset="0" stop-color="#fff"/><stop offset="1" stop-color="#fff7ed"/></linearGradient><marker id="ar" markerWidth="8" markerHeight="8" refX="6" refY="3" orient="auto"><path d="M0,0 L6,3 L0,6 Z" fill="#f97316"/></marker></defs><text x="20" y="30" font-size="14" font-weight="800" fill="#ea580c">Strategy & Yield — Process diagram</text><text x="20" y="48" font-size="10.5" fill="#86868b">green = live sensor of the installation · flow from left to right</text><line x1="138" y1="152" x2="204" y2="152" stroke="#f97316" stroke-width="2.5" marker-end="url(#ar)"/><line x1="328" y1="152" x2="395" y2="152" stroke="#f97316" stroke-width="2.5" marker-end="url(#ar)"/><line x1="519" y1="152" x2="586" y2="152" stroke="#f97316" stroke-width="2.5" marker-end="url(#ar)"/><line x1="710" y1="152" x2="776" y2="152" stroke="#f97316" stroke-width="2.5" marker-end="url(#ar)"/><g><rect x="20" y="120" width="118" height="64" rx="12" fill="url(#bx)" stroke="#fdba74" stroke-width="1.5"/><text x="79" y="148" text-anchor="middle" font-size="13" font-weight="700" fill="#1d1d1f"> SoC </text><text x="79" y="170" text-anchor="middle" font-size="10.5" fill="#86868b">Fill level</text></g><g><rect x="210" y="120" width="118" height="64" rx="12" fill="url(#bx)" stroke="#fdba74" stroke-width="1.5"/><text x="270" y="148" text-anchor="middle" font-size="13" font-weight="700" fill="#1d1d1f">Price forecast</text></g><g><rect x="401" y="120" width="118" height="64" rx="12" fill="url(#bx)" stroke="#fdba74" stroke-width="1.5"/><text x="460" y="148" text-anchor="middle" font-size="13" font-weight="700" fill="#1d1d1f"> Optimizer </text><text x="460" y="170" text-anchor="middle" font-size="10.5" fill="#86868b">IA</text></g><g><rect x="592" y="120" width="118" height="64" rx="12" fill="url(#bx)" stroke="#fdba74" stroke-width="1.5"/><text x="650" y="148" text-anchor="middle" font-size="13" font-weight="700" fill="#1d1d1f"> Charge/Décharge </text></g><g><rect x="782" y="120" width="118" height="64" rx="12" fill="url(#bx)" stroke="#fdba74" stroke-width="1.5"/><text x="841" y="148" text-anchor="middle" font-size="13" font-weight="700" fill="#1d1d1f"> Rendement </text></g></svg></div> <div class="sec"><div class="block"><h3>Thus we connect — read-only</h3><p class="step-p">The value comes from<b>Modbus TCP · CAN (BMS) · PCS</b>from the installation —<b>read, not controlled</b>. Everything is<b>in-house</b>calculated, nothing leaves the house. No obligation to disclose operational data.</p></div><div class="block"><h3>Your own LLM BESS — offline</h3><p class="step-p">Questions in plain language, answered by<b>Your own installation data</b>— local, no cloud. The AI runs internally; the installation remains yours.</p></div><div class="note"><b>Regulatory framework:</b> EnWG/StromNZV </div><div class="block"><h3>Connection with the entire installation</h3><p class="step-p">Storage only reveals its value within the system: with PV, load peaks, and electricity prices. The AI plans storage in relation to the entire installation.</p><div style="display:flex;gap:.6rem;flex-wrap:wrap;margin-top:.6rem"><a href="/glaesern/cogeneration/" style="font-size:.85rem;padding:.4rem .9rem;border:1px solid var(--border);border-radius:999px;text-decoration:none;color:var(--accent)">Gläsernes BHKW →</a><a href="/glaesern/hotel/" style="font-size:.85rem;padding:.4rem .9rem;border:1px solid var(--border);border-radius:999px;text-decoration:none;color:var(--accent)">Gläsernes Hotel →</a><a href="/fr/pv-watcher/" style="font-size:.85rem;padding:.4rem .9rem;border:1px solid var(--border);border-radius:999px;text-decoration:none;color:var(--accent)">PV-Watcher →</a></div></div></div><div class="sec faqsec"><h2>Frequently Asked Questions</h2><details><summary>What is an arbitrage dispatch plan for a BESS?</summary><div class="faq-a">An algorithm that controls the timing of charge and discharge cycles based on current electricity market prices.</div></details><details><summary>How does the dispatch plan influence profitability?</summary><div class="faq-a">It enables selling energy at peak prices and buying at low prices, which reduces the payback period of the BESS.</div></details><details><summary>What role does the EnWG play in the arbitrage dispatch plan?</summary><div class="faq-a">The EnWG defines the framework for trading and grid integration, which must be strictly complied with when programming the dispatch plan.</div></details><details><summary>From what point is a BESS profitable for arbitrage?</summary><div class="faq-a">Profitability depends on the daily price spread, battery degradation costs, and specific network fees.</div></details><details><summary>How is the state of charge (SoC) integrated into the calculation?</summary><div class="faq-a">The SoC serves as a physical limit; the dispatch plan must ensure that the battery is never overcharged or discharged too deeply, while waiting for the optimal time window.</div></details><details><summary>Why is an accurate forecast important for the arbitrage dispatch plan?</summary><div class="faq-a">As electricity prices are volatile, the system requires forecasting models to make the correct decision between storage and immediate injection.</div></details></div> <footer class="site"><div class="wrap"> <div class="fbrand">◈ Transparent BESS</div> <p class="fclaim">Connected in read-only mode · local calculation · no cloud. The installation remains at your site.</p> <nav class="flinks"><a href="/glaesern/bess/">All trades</a> <a href="/glaesern/bess/strategie.html">Strategy & Yield</a> <a href="https://bhkw-anlagen.com/impressum.html">Legal notice</a> <a href="https://bhkw-anlagen.com/datenschutz.html">Data protection</a></nav> <div class="fcopy">© 2026 HR Energiemanagement GmbH · 32257 Bünde · +49 5223 4921030</div> </div></footer> <script> var state={step:1}; function li(t){return '<li>'+t+'</li>';} function nav(s){var b=s>1?'<button class="wiz-back" onclick="go('+(s-1)+')">← Back</button>':'<span></span>'; var n=s<4?'<button class="wiz-next" onclick="go('+(s+1)+')">Next →</button>':'<button class="wiz-next" onclick="go(1)">From the beginning</button>'; return '<div class="wiz-nav">'+b+n+'</div>';} function step1(){return '<div class="step-grid"><img class="step-img" src="../img/strategie.jpg" alt="Arbitrage planning">'+ '<div><p class="step-kicker">Step 1 · Understand</p><h2 class="step-h">What is an arbitrage dispatch plan?</h2>'+ '<p class="step-p">An arbitrage dispatch plan is the algorithmic control module of a battery energy storage system (BESS) that controls the state of charge (SoC) based on dynamic market prices. It serves economic optimization by charging energy when prices are low and feeding it into the grid during times of high demand or high spot market prices. Implementation takes place in strict compliance with the regulatory requirements of the EnWG and the StromNZV.</p></div></div>'+nav(1);} function step2(){return '<div class="step-grid"><div><p class="step-kicker">Step 2 · See live</p><h2 class="step-h">No own register — honestly</h2><p class="step-p">For this component, <b>no own register</b> is connected; therefore, no example value is provided here. Where the system measures, the value is read in read-only mode and calculated locally. It becomes visible via connected components.</p></div><img class="step-img" src="../img/strategie.jpg" alt="System"></div>'+nav(2);} function step3(){return '<p class="step-kicker">Step 3 · What the AI does</p>'+ '<h2 class="step-h">What the AI reads in this component</h2><ul class="chk">'+li('Current **spot market price (Day-Ahead/Intraday)** to identify price gaps')+li('Current **state of charge (SoC)** to calculate available capacity')+li('Forecasts for **grid load and shares of renewable energy** to anticipate price peaks')+li('Compliance with **grid balancing directives** to avoid penalties')+'</ul></div>'+ '<img class="step-img" src="../img/ki-strategie.jpg" alt="AI monitors">'+ '<div class="szen szen-grid"><img class="szen-img" src="../img/szen-strategie.jpg" alt="Scenario" loading="lazy"><div><p class="mon">Monitored: continuously · based on price and weather</p>'+ '<p class="step-p"><b>The scenario:</b> if storage operates without preparation during peaks, it is purchased at a high price, leading to avoidable costs and lost arbitrage opportunities.<br>'+ '<b>The AI:</b> identifies early when pre-charging is necessary — the peak is covered, the rest earns. <b>It detects the trend before the limit is reached.</b></p></div></div>'+nav(3);} function step4(){return '<p class="step-kicker">Step 4 · Your profit</p><h2 class="step-h">Why it matters</h2>'+ '<div class="benefit"><h3>A precise arbitrage roadmap maximises return on equity by exploiting price differences while simultaneously minimising grid fee costs.</h3><p>Automated control according to the arbitrage roadmap preserves cell lifespan through optimised charging cycles. Furthermore, precise scheduling enables efficient use of the BESS to stabilise the local grid connection.</p></div>'+ '<div class="calcbox"><p class="step-p">shifted energy (kWh) <input id="c0" type="number" step="any" value="400" oninput="r()"> · price spread (ct/kWh) <input id="c1" type="number" step="any" value="8" oninput="r()"> → <b><span id="o" style="color:var(--accent)">—</span> €/cycle</b></p>'+ '<p class="mon" style="margin-top:.5rem">Calculation: Energy × Spread</p></div>'+nav(4);} function r(){var v=[];for(var i=0;i<2;i++){var e=document.getElementById('c'+i);v.push(e?parseFloat(e.value)||0:0);}'o');if(o)o.textContent=(Math.round(res*100)/100).toLocaleString('de-DE');}'body').innerHTML=state.step===1?step1():state.step===2?step2():state.step===3?step3():step4();'#steps .st').forEach(function(el){var n=+el.getAttribute('data-s');el.classList.toggle('on',n===state.step);el.classList.toggle('done',n<state.step);});'smooth'});} document.querySelectorAll('#steps .st').forEach(function(el){el.style.cursor='pointer';el.onclick=function(){go(+el.getAttribute('data-s'));};}); render(); </script></body></html>