Energy & utilities

Consumption dashboard for households at a municipal utility: monthly electricity and gas use, comparison with the previous year and with similar households, plus meter reading, tariff zone and cost in euros. It reads meter readings and load profiles from CSV files, bills peak and off-peak tariff separately and marks load spikes. Useful twist: the dashboard detects when an instant water heater, a wallbox and a heat pump run at the same time and warns the evening before the peak tariff window. The result is a CSV export and a plain-language explanation with large type and clear colours.

Solar yield calculator for sales and planning at a solar firm: enter address and roof area and immediately see kilowatt hours per year, self-consumption rate, payback time and CO2 savings, with pitch and orientation per roof. The calculator pulls twenty years of weather data from the nearest measuring station and models shading from chimney, tree and neighbouring building at hourly resolution. A useful detail: it warns when the forecast would be too optimistic because of module degradation. The result is a two-page offer as a PDF with a yield curve and a note on grid compatibility.

Mobile capture app for meter readers at a municipal utility with around 4,000 electricity and water meters per quarter: scan the meter number, type or photograph the reading, store photo, timestamp and signature. The app reads the value from the photo by text recognition and checks it against last year's figure. Useful twist: it warns immediately about reverse running, jumps or swapped meters, which hints at a possible pipe burst, and works in the cellar without signal, syncing later. The result is a reading protocol as a PDF with photo, timestamp and signature.

Statement generator for the office of a citizen energy cooperative with 40 photovoltaic systems: upload plant data, meter readings and grid operator volumes, and produce a PDF statement per plant with the remuneration rate for its commissioning year, measured values and payout amount. The tool compares both series and flags deviations above two percent in red, with a ready-made objection letter and a deadline calendar. A useful detail: a summary report shows which plant is losing money and where the grid operator settled too low. The result is a statement package as a PDF per plant plus a quarterly overview.

Maintenance planner for plant engineers at a regional electricity grid operator with 300 substations: keep stations with inspection deadlines under DGUV V3 and VDE, age and load, and show the upcoming jobs as a route on a map. The planner suggests thermal imaging preferably on hot summer days and automatically shifts appointments around farmers' harvest and blocking periods. Useful twist: it flags when two deadlines fall in the same month, and after each visit produces a test report as a PDF with measured values, defect photos, deadlines and a QR code for the station.

Digital checklist for energy advisers at a regional energy agency during on-site visits: forty checkpoints on building envelope, heating, ventilation and electricity, each with photo and note. At the end the app builds a subsidy roadmap that fixes the order of measures, because heat pump and roof insulation affect each other. Useful twist: it warns when a grant is lost because an earlier measure was carried out, and applies subsidy rates matching the retrofit state. The result is a report as a PDF with a traffic-light rating and cost estimate for the owner.

Load profile analysis for the energy management of a city with 60 municipal properties: arrange all meters in a heatmap across day and week, mark the most expensive quarter hours and relate the capacity charge to the electricity bill. The tool finds the baseload thieves, such as pumps that keep running at night or heating in an empty building, and suggests which loads can be shifted into hours with surplus solar power. Useful twist: it recognises public holidays and school breaks by itself. The result is a monthly report as a dashboard with the savings potential in euros.

Heating consumption tracker for the management of 22 apartment buildings heated by gas and district heating: combine consumption, outdoor temperature and living area and compare each building and riser. The tracker adjusts the values for outdoor temperature so that weather and user behaviour become separately visible. Useful twist: it reports when one riser needs thirty percent more heat than comparable risers, a clear sign that hydraulic balancing is needed, and estimates the annual saving. The result is an overview as a PDF for the owners' meeting.

Planning tool for photovoltaic sales and project engineering at a solar firm: lay out roof areas, choose modules and inverters, size the battery and see the layout plan next to it. The planner checks grid compatibility from the address and warns early when the feed-in power would overload the local feeder or the connection has to be reinforced. Useful twist: it derives the string diagram from the layout automatically and points to the required registration with the grid operator. The result is a quote as a PDF with string diagram, grid check and registration note.

Tariff comparison list for customer advice at a municipal utility: enter a household profile and see every tariff with true annual cost, monthly instalment, bonus conditions and switching effort. The list includes bonuses, price guarantees and the notice period and reminds customers in good time before the switching window. Useful twist: it warns before anyone slips into automatic renewal and marks tariffs that are cheap only in the first year. The result is a short PDF printout for the consultation with the three cheapest options.

Capture app for pipe network foremen at a water utility with 8,000 water meters: record reading and photo, produce the reading protocol as a PDF with signature and automatically schedule the next calibration swap, because every meter is replaced after six years. The app detects meters running backwards and immediately reports a suspected pipe burst to the control room. Useful twist: it bundles swap appointments by street so that one technician replaces all meters in a street on one day, with no trips to individual flats. The result is a route plan as a PDF plus a protocol per meter.

Fault board for the control room of a regional distribution grid operator: capture reports with map, address and time and bundle them into clusters, estimating affected households from the grid model. The board automatically recognises addresses with medical equipment, such as home dialysis or insulin fridges, and moves them to the top of the job list. Useful twist: it estimates the number of households without power from the grid model and the substation instead of counting each report separately. The result is a dispatch plan for the crews and a short fault notice to the affected customers, summarised in a dashboard once the work is done.

Energy cost report for the controlling department of a bakery chain with 14 branches: collect consumption and cost per branch, convert them to units sold and present a location comparison. The report spots branches that cool at night like a heavy consumer, for example because of a leaking cooling tower, and points to ovens with an unfavourable heating profile. Useful twist: it gives the most plausible reason for every deviation instead of just showing a figure. The result is a PDF at month end with traffic-light colours, reasons for deviations and three concrete saving suggestions for management.

Climate targets dashboard for a city's climate action office: merge heating, electricity, transport and municipal buildings into a CO2 budget path and show the trajectory to 2035, fed from the files of the building department, the municipal utility and the transport operator. The dashboard warns when the annual consumption breaks the remaining budget and proposes retrofits in order of their effect per euro spent. Useful twist: it runs scenarios for retrofit rate, transport transition and solar expansion against each other and shows which measure supports the target path most. The result is a report for the council as a PDF with a list of measures and the budget trajectory.