Amazon Alexa
How Amazon Alexa Integration Expands the Capabilities of the AI-Controlled Stromfee-Tagebuch
Batteries Worldwide: Global Storage at a Glance
How many batteries are deployed worldwide, who leads, and what grid storage actually does — the short answer first.
Battery Marketing: How to Monetize a BESS
Battery marketing means selling your storage on power markets. Here is how it works, which markets pay, and how to start.
Battery Cost per kWh: Prices & What Drives It
What a battery really costs per kWh — cell vs installed price, why it varies, and the cost-per-cycle number that actually matters.
Battery Energy Storage System Overview 2025 Trends
Stromfee optimizes battery storage arbitrage using day-ahead spot market prices. Technical details on charge/discharge strategies, market mechanics, c
Commercial Battery Storage: A Practical Guide
What commercial battery storage does, whether it pays off for your business, and how to size it — clear answers before you request a quote.
Belarus
The Emergence of Belarus in European Electricity Markets
BESS in København: Battery Storage Explained
What a battery energy storage system does in Copenhagen — grid zone DK2, market access, siting and revenue basics, in plain English.
Brazil
Introduction to the Spot Market
Brazil's electricity market is a vital part of its growing economy, and one key area of focus is the spot market. This is a marketplace where electricity is bought and
Peak Shaving: How to Cap Load Peaks & Cut Costs
"Lastspitzen kappen" means shaving load peaks. Here's exactly how it works, what it costs you, and how to cut peaks step by step.
Markets — Live battery ceiling for 33 electricity markets
Live day-ahead prices, negative hours and the battery ceiling (Decke) for 33 markets across Europe and worldwide. Real data, updated daily.
Datenschutzerklärung
Datenschutzerklärung der HR Energiemanagement GmbH
Day-Ahead Electricity Price Germany: How It Works
Where the German day-ahead price comes from, when it is set, and why the daily spread is a battery's core revenue.
Day-Ahead Electricity Price Germany Explained
How Germany's day-ahead power price on EPEX SPOT is set each day at noon, why it swings hour to hour, and how batteries earn on the spread.
Day-Ahead Electricity Price Now (DE/LU) — Where to See It
There's no single day-ahead price — it changes every 15 minutes. Here's where to read today's live EPEX SPOT price for Germany.
Was ist ein BESS Stromspeichersystem?
Independent battery storage (BESS) development across 35+ markets: arbitrage optimization & marketing, site & feasibility, full build to commissioning
Batteriespeicher-Herausforderungen und Entwicklung
Stromfee - Speicher-Arbitrage, Day-Ahead-Markt, Batterieeffizienz
Direktvermarktung of Battery Storage: How a BESS Earns
How Direktvermarktung works for a battery storage system: markets, allocation across day-ahead and balancing reserve, and where the spread is planned.
Electricity Price Forecast 2026: €/MWh Outlook
What will power cost in 2026? Forward-market €/MWh figures, the negative-price record ahead, and where the spreads open up.
Electricity Price Forecast: How Prices Develop
How electricity prices are forecast, what drives them, and how a 7-day ML forecast helps you time consumption and storage.
Capturing Energy Data: Methods, Monitoring and AI Analysis
How to capture energy data continuously, visualize it in a dashboard and turn it into savings — with the Stromfee Diary and Energy AI.
Energy Data Acquisition for Better Battery Storage
Stromfee delivers precise energy data acquisition systems with real-time monitoring, integrated with BESS, PV, CHP, and spot market arbitrage. Ensure
Energy Monitoring with Raspberry Pi: How to Start
Yes, a Raspberry Pi can monitor your energy use. Here's what you need, how to wire it, and which software to run.
Energy Consumption Analysis: Grid and Drive Data
How an energy audit with network analysis reveals waste, load peaks and inefficient drives — and what Stromfee measures, proposes and monitors.
Energy Consumption in Glass Manufacturing: Measure & Optimise
How energy is used in glass production, why the melting furnace dominates, and how Stromfee measurement technology and energy AI monitor and reduce co
Hotel Energy Guide 2026: Where It Goes & How to Cut Costs
How AI-driven hotel energy management makes every watt visible — from HVAC, kitchens and pools to the CHP plant — and turns spot-price, curtailment an
Energy Monitoring App: How It Works & How to Start
Searched via Yahoo for an energy monitoring app? Here's what it does, how to install one, and what to expect.
Energy Monitoring for Commercial Cooling Systems
Stromfee explains precise energy monitoring for commercial cooling systems. Learn critical measurement points, data analysis methods, and practical st
France
France has a well-established and diverse landscape of spot markets, covering various sectors such as energy, agriculture, and financial services. The
Wie beeinflusst ein Smart Meter den Strompreis?
See how German electricity pricing works across day-ahead, PT15M and PT60M spot markets — with live ENTSO-E data and Stromfee's spot-price analysis.
Italy
Energy supply is an important topic that affects not only our quality of life but also the environment. Italy, benefiting from a diverse energy mix, i
What Are Norway's Bidding Zones NO1–NO5?
Norway is split into five electricity bidding zones — NO1 to NO5 — each with its own spot price. See how they differ and why it matters for your bill.
Sweden
The Swedish energy market is a complex ecosystem with various players, including energy producers, distributors, and consumers. One of the most intrig
FCR Market: How Batteries Earn from Frequency Reserve
How the FCR (primary reserve) market works, why batteries suit it, and how FCR stacks with aFRR, mFRR and day-ahead arbitrage across Europe.
Festpreistarif: What a Fixed-Price Electricity Plan Is
A Festpreistarif locks your kWh price for the whole contract. See how it works, what it fixes, and when it beats a variable tariff.
Finland
The electricity mix in Finland, as in many countries, is the result of a combination of factors, including resource availability, economic considerati
Fronius Battery & Dynamic Tariffs: Charge When Cheap
Can a Fronius storage system charge from the grid when spot prices are low? What Fronius does on its own, what needs a HEMS, and how to set it up.
GDPR AI Guide: Pools, Hotels & Wellness – Proven Steps
The real, step-by-step path of introducing AI into a swimming pool: measure, validate, add mobile metering, digitise plans & photos, build a local
GDPR-Compliant AI for Pool, Hotel & Wellness Energy
Local, GDPR-compliant AI energy management for swimming pools, hotels and wellness centres — pumps, heating, load-shifting and battery use, without gu
Controlled Switching for Energy: How Stromfee Works
Controlled switching charges and discharges battery storage by electricity price. How Stromfee uses AI, Shelly switches and day-ahead data to cut cost
Gewerbe Batteriespeicher: Commercial Battery Storage & Day-Ahead Arbit
How commercial battery storage works, where it earns money on the day-ahead market, and how to size and assess a project — from Stromfee.
Gewerbespeicher für maximale Wirtschaftlichkeit im Unternehmen
Discover Stromfee's commercial battery storage solutions, including day-ahead market arbitrage, PV integration, and energy management for busines
Harmonic Measurement (Oberschwingungsmessung) Explained
What harmonic measurement is, how it works, and which values to check on your grid. Straight answers, no fluff.
Hotel Energy Management System for Hotels & Resorts
Hotel Energy Management mit Stromfee: Echtzeit-Auswertung statt statischer Reports macht Grauzonen sichtbar und macht Erlösausfälle sowie Spotpreis-Fe
Battery Trading: Profit from Energy Arbitrage
Learn how to trade electricity with BESS, maximize revenue through arbitrage and peak shaving, and optimize your battery's potential.
Energy Monitoring Costs: What You Actually Pay
What drives the price of energy monitoring — hardware, software and install — and where the savings come from.
How to Use Surplus Solar Power: 6 Smart Ways
Feeding solar back to the grid pays little. Here's how to actually use your excess PV power and cut your bill instead.
Hungary
Hungary actively participates in European electricity markets where spot prices (short-term prices) for electricity are
IFTTT
Innovations never cease to amaze us, especially when they significantly impact our lives. The Stromfee-Tagebuch, your trusted energy monitor, has now
HR Energiemanagement GmbH — Impressum & Kontakt
Impressum der HR Energiemanagement GmbH in Bünde — Geschäftsführer Holger Roswandowicz. Anschrift, Kontakt und rechtliche Angaben zu Stromfee.
Intraday Power Prices Explained (EPEX)
What intraday electricity prices are, how continuous trading works, and why prices move minute by minute right up to delivery.
Ireland
Informationen zum irischen Strommix und der Teilnahme am europäischen Energiemarkt. Erfahren Sie mehr über die Entwicklung von Erzeugung und Verteilun
Is an Electricity Price Guarantee Worth It?
A price guarantee locks your rate — but often not the whole bill. See when it pays off and the fine print that quietly undoes it.
What is KI Vision & How Does It Work?
How Stromfee applies AI to day-ahead storage strategy and plant monitoring — from BGA pipelines to wiki-based agent knowledge and cloud infrastructure
Cooling and Power Supply for AI Data Centers
How AI data centers draw power and reject heat — grid load, free vs liquid cooling, real-time load profiles and battery-storage arbitrage.
Peak Shaving Costs: What Load-Peak Capping Costs
What peak shaving really costs — the battery investment, the demand charge it removes, and how to tell if it pays back.
Marketing a Grid-Scale Battery: How It Works
How do you monetize a large battery storage system? Direct marketing, the revenue markets, and the steps to get paid.
Negative Electricity Prices: What They Mean for You
Why does power sometimes cost less than nothing — and should you keep feeding the grid? Clear answers, no jargon.
Grid-Serving Battery: What Netzdienlichkeit Means
Netzdienlichkeit means your battery helps the grid, not just your bill. What counts, how it is measured, and what it pays.
Grid Stability in Energy Networks: How Flexibility Keeps the Balance
How grid frequency, negative prices and the 2025 Spain blackout show why energy networks need flexibility from CHP plants and battery storage.
Harmonics (Oberschwingungen): Causes, Effects, Measurement
How harmonics arise in power networks from frequency converters and PV inverters, what damage they cause, and how measurement and monitoring help redu
Oberwelle (Harmonics): Causes, Effects and Solutions
What harmonics (Oberwellen) are, how frequency converters and PV inverters create them, the damage they cause, and how measurement-based analysis help
Oberwellen und Flicker in PV-Anlagen vermeiden
Technical guide on harmonics and flicker causes, impacts, and mitigation strategies for commercial PV systems. Learn how Stromfee's solutions red
Oberwellen im Stromnetz: Messen und Gefahren erklärt
Stromfee engineers PV systems with active harmonic filtering to reduce distortion. Technical insights on causes, impacts, and solutions for commercial
Freezer Control Based on Low Electricity Prices
Learn how to optimize freezer systems using smart price managers to shift energy-intensive cooling to cheaper periods and cut costs.
Peak Shaving in Industry: How to Cap Load Peaks
What peak load capping means in industry, how the demand charge is set, and how to cut it — the direct answer first.
Peak Shaving Berechnung: Wie groß muss der Speicher sein?
Peak Shaving Berechnung Schritt für Schritt: von der 15-Minuten-Lastspitze zur Speichergröße (Leistung und Energie) – plus Kombi mit Day-Ahead-Arbitra
Peak Shaving Calculation: Formula, Battery Sizing
Calculate peak shaving step by step: find your 15-min demand peak, set a target, and size the battery power and capacity that shaves it.
Peak Shaving Calculation: Battery Size & Savings
How to calculate peak shaving step by step: peak power, target ceiling, battery kW/kWh and the demand-charge savings behind it.
Peak Shaving with Battery Storage: How BESS Cuts Demand Peaks
How a battery storage system (BESS) shaves quarter-hour load peaks, lowers demand charges and grid fees, and adds day-ahead arbitrage yield.
Peak Shaving Battery for Enterprises: Cut Demand Charges
How a BESS shaves your load peaks, lowers demand charges, and pays for itself. Sizing, savings and payback explained.
Peak Shaving for Enterprise Battery (BESS)
How enterprises use battery storage to cut peak demand charges — what it is, how it works, and what it saves.
Portugal
Informationen zum portugiesischen Strommarkt, zur Energieerzeugung und zu den Mechanismen des Spotmarktes für die Preisgestaltung in Portugal.
Power Price: How Day-Ahead Markets Set It
How wholesale power prices form on the day-ahead market, why spreads open, and how battery storage arbitrage captures them. With live Stromfee data.
Price Guarantee vs Price Fixing in Power Contracts
How a fixed-price tariff and a price guarantee differ, what they cover, and how the day-ahead wholesale market sets the price underneath both.
Power Quality: Measuring and Improving Electrical Energy
What power quality means, how it is measured to EN 50160 with a power analyzer, and how monitoring finds harmonics, flicker and unbalance.
Reactive Power Compensation: How It Works & Costs
Reactive power compensation cuts hidden grid charges. See how capacitor banks, cos φ correction and control fix it — step by step.
Serbia
Electricity is a crucial commodity that powers our daily lives, industries, and economies. In Europe, various countries participate in electricity
Services
AI energy management on the electricity spot market — Shelly & Loxone switching, hotel & property energy optimization, ENTSO-E market monitori
Was kann der Shelly EM3 für die Laststeuerung?
Shelly EM3, EM3 Pro und der Stromfee Switcher reagieren auf Live-Spotpreise (ENTSO-E) und schalten Lasten, wenn Strom am günstigsten ist – dynamischer
Shelly Plug S
Shelly Plug S: Smart Control Through the Electricity Spot Market
Shelly Pro 4 PM
A Comprehensive Guide to Smart Energy Management with Shelly Pro 4 PM
Sine Filter (Sinusfilter): What It Is & When to Use
A sine filter turns a drive's choppy PWM voltage into a clean sine wave. Here is how it works and when you actually need one.
Slovakia
The electricity mix in Slovakia, as in other European countries, is determined by a combination of factors that include availability, cost, and policy
Software for Monitoring Device Maintenance
How maintenance-monitoring software with sensors and AI tracks service intervals, control points and device condition for CHP units, PV and heat pumps
Solar Battery Lifespan: How Long Does It Last?
Datasheets promise 6,000+ cycles at 80% health — but what does a home solar battery really deliver in the field? The honest answer.
Lohnt sich Preisfixierung beim Stromanbieter wirklich?
Feste Strompreise klingen sicher — doch wann kostet Preisfixierung beim Stromanbieter mehr? Stromfee zeigt es mit Live-Day-Ahead-Daten und BESS-Arbitr
India
India, a country with a burgeoning population and a rapidly growing economy, faces unique challenges in its energy sector. With a rising demand for
Energy Monitoring Market: What It Is & Why
What the energy monitoring market covers, who it serves, and how to pick a system — the plain facts first, no sales pitch.
What Is a Thermal Drone Inspection and How Does It Work?
A thermal drone inspection films heat, not light — spotting PV hotspots and faults from the air. See what it detects and when you need one.
Turkey
Turkey is an increasingly significant player in the global energy market, thanks to its growing economy and escalating energy needs. But what about th
Who is the cheapest energy supplier in the UK?
How the UK electricity market and energy mix shape what you pay — and how the spot market can cut your bill. Compare the numbers with live data from S
USA
To start, the United States generally doesn't directly participate in European electricity markets. However, U.S.-based companies that operate in
Marketing Battery Storage: How a BESS Earns Revenue
How large battery storage is marketed in Germany: day-ahead arbitrage, balancing reserve, TSO prequalification and allocation across markets.
Direktvermarktung Batteriespeicher – Maximale Erträge sichern
Technical guide on battery storage arbitrage in day-ahead markets. Explains price forecasting, scheduling, constraints, and optimization for commercia
Vision AI in Energy Management: Stromfee PV-Watcher & §51
How Stromfee applies Vision AI in energy management: the PV-Watcher for §51 EEG, inverter control via Modbus/API, and AI-based BESS optimization.
Was sind Energy Monitoring Systems und wie funktionieren sie?
Energy monitoring systems track where and when you use power in real time. See how they work, what they measure, and how to get started.
Negative Electricity Prices: What They Mean
When supply beats demand, power prices drop below zero and producers pay to feed in. Here's why it happens — and how you can benefit.
Advantages of a Dynamic Electricity Tariff
Dynamic electricity tariffs: lower bills, more green power, real market transparency — see the concrete benefits and who they suit.
Festpreis Explained: Fixed-Price Energy Tariffs
Festpreis is German for fixed price. Here is what a fixed-price electricity tariff means for your bill and when it beats a dynamic one.
PV Monitoring System: What It Is & How It Works
A PV monitoring system tracks your solar output in real time. See what it measures, what hardware it needs, and how to pick one.
Scalable Battery Storage: Manufacturers Compared
Which battery storage manufacturers actually let you add modules later — named brands for home, commercial and grid-scale, plus what to check.
Electricity Price Forecast Explained (Day-Ahead)
What an electricity price forecast is, how day-ahead spot prices are predicted, and how to read a 7-day forecast to buy or store power cheaper.
Electricity Price Scenario: How to Build One
What an electricity price scenario is, how to model high/base/low cases, and how forecasts turn into real decisions. Start here.
Unit of Apparent Power: Volt-Ampere (VA)
Apparent power is measured in volt-amperes (VA). See what VA means, how it differs from watts, and the formula S = U·I.
Biggest Battery for Solar PV: Sizing & Records
How large a solar battery actually makes sense — from home storage to the world's largest grid batteries. The honest answer.
