I spent two decades on fuel systems and controls before I wrote a line of any of this. Every app works with no signal, because the sites that need them do not have any.
Twenty years on fuel systems and controls. The calculations are the ones I needed myself.
No signal in a forecourt, a riser room or a battery yard. Nothing here needs a connection.
Nine hundred error codes and field procedures, published openly. No account, no email required.
One app per trade, each built around the work rather than around a category.
Fuel systems. Drop tube cuts, overfill valve placement, tank charts, EPD inspections and dispenser error codes.
Utility scale solar. String sizing, NEC calculators with citations, inverter faults, commissioning and tracker procedures.
Battery energy storage. State of charge, capacity fade, round trip efficiency, BMS and PCS faults, NFPA 855 and UL 9540.
Fire alarm. NFPA 72 inspections, ground fault chasing, notification appliance circuits, voltage drop and candela.
Data centre operations. UPS and cooling, method of procedure checklists, runtime and capacity, critical facility work.
Published openly on this site. No signup, no email, and you do not need the app to read any of it.
Veeder Root TLS 300, 350, 450 and TLS4. Gilbarco 500 and 700 series and Encore 300. Wayne Ovation. Franklin INCON. FE Petro.
Inverter fault codes, combiner maintenance, tracker procedures, plan sets and drawings, Modbus and SCADA, ANSI device numbers.
BMS and PCS fault families, energy management dispatch, thermal management, communications protocols, standards summaries.
NFPA 72 troubleshooting, panel trouble conditions, ground fault procedures, notification appliance circuits.
UPS and cooling references, critical facility procedures, method of procedure content, capacity and runtime notes.
Because the answer should be findable at two in the morning by someone who has never heard of me. The apps do the calculations. The reference is just there.
Fifteen apps in total, including work outside the trades.
Trial preparation for attorneys. Cross examination, openings and closings, trial checklist and case notes.
Invoicing and payment chasing for people who would rather be doing the work.
Most of these apps started because a technician needed something that did not exist. If your team has a job that no software fits, that is the work I take on. Fixed price, working software in weeks, built by someone who has stood on the site.