KNOWLEDGE HUB

Solar, ESS & Energy Saving — technical resources.

Explore our technical guides, product catalogues and case studies covering solar PV design, battery energy storage sizing, LED lighting specifications and energy efficiency best practices for Bangladeshi industry.

Engineering Calculators

Interactive tools based on IEC standards and Bangladesh local data. All calculations are performed client-side — no data is sent to our servers.

BAESS — Free Solar Engineering Tools (External Reference)
A comprehensive suite of 29 free solar and electrical engineering calculators — string sizing, cable sizing (DC/AC), earthing, short circuit, lightning protection, LCOE, PR analysis, and more. All browser-based, no signup required. Includes live component databases with 5000+ panel models and 1000+ inverters.
Diesel vs Lithium BESS
Compare the monthly running cost of a diesel generator versus a grid/solar-charged LFP battery for backup, using cited Bangladesh tariffs. Emails a sourced report.
Solar ROI / Payback Period
Estimate the financial return on a commercial or industrial solar installation. Uses Bangladesh BPDB tariffs and local irradiance data.
Solar Energy Yield
Estimate annual electricity generation for any city in Bangladesh using NASA POWER irradiance data and IEC performance ratio standards.
Cost of power outages
Estimate what unplanned load-shedding costs your operation each month — lost revenue plus idle staff — and the diesel cost of covering it.
ATM / branch UPS sizing
Size an online UPS and battery bank to keep ATMs or a bank branch running through an outage. For banks & financial institutions.
Earthing Resistance
Calculate the ground resistance of a single vertical rod using Dwight's formula. Includes IEC 60364 / IEC 62305 compliance check.
Lightning Protection Zone
Determine the protection radius of an air termination using the IEC 62305 Rolling Sphere Method. Includes LPL selection guide.
Cable Sizing — Voltage Drop
Find the minimum cable cross-section to meet voltage drop limits for copper and aluminium conductors per IEC 60228.