Engineering guides & industry insights — page 7
MEPF, solar and fire-safety guides — page 7
Archive page 7 of 24 — practical, no-jargon guides on MEPF, solar, fire safety and approvals.
Writing an MEP Design Brief for a New Factory (Template Inside)
A fill-in MEP design brief for a new factory: the process utility schedule, growth and redundancy, standards and approvals, budget basis and the deliverables to ask for, so the design consultant starts from your process and not from guesses.
Zero Export Device for Solar: When a DISCOM Insists and How It Works
Why a DISCOM may require zero export from a solar plant, the device types, response time, the generation you lose, and how the economics differ from net metering.
11 kV Substation for a Factory: Components, Cost Drivers and the Approval Sequence
What an 11 kV factory substation contains, what moves its cost without quoting a price, how contract demand sets the voltage in Punjab and Haryana, and the DISCOM and inspector sequence.
Accelerated Depreciation on Solar in 2026: What a Factory Can Actually Claim
What the Income-tax Act, 2025 and the Income-tax Rules, 2026 give a factory that buys a solar plant: the 40% rate, the 180-day half-year rule, 20% additional depreciation for manufacturers, what can block it, and how to model it in payback.
Addressable vs Conventional Fire Alarm for a Factory: How to Choose
What each fire alarm architecture tells the control room, the zone and loop limits in IS 2189:2008, and the decision rules for a factory: size, sheds, false alarms, expansion and compatibility.
AHU Cost for a Factory or Pharma Plant: Specification, Filtration and Cost Drivers
What moves the cost of an air handling unit in a factory or pharma plant: airflow, static pressure, filter train, coil, casing and controls, with the revised Schedule M points and a fan-power method for comparing quotations.
Bifacial Modules on a Factory Roof: When the Rear-Side Gain Is Real
Bifacial modules pay back only when light reaches the rear face. How roof albedo, mounting height, spacing and roof type decide the gain, a roof-by-roof table, a break-even test for the premium, and when mono-facial is the better buy.
Buying a Factory That Already Has Solar: The Due-Diligence Checklist
What to check before you buy a factory that already has a rooftop solar plant: who owns it, whether the DISCOM arrangement transfers, dues, warranties, generation history and roof condition.
CAPEX vs OPEX (RESCO/PPA) for a 500 kW Factory Plant: The Decision Table
Own the plant or buy its power? A neutral decision table for a 500 kW factory: ownership, tariff, tenure, accelerated depreciation, GST, balance sheet, exit terms and who carries performance risk.
CAR Insurance and the Other Policies Your MEP Contract Should Require
Which policies an MEP contract should require and who should buy them: contractor's all-risk, public liability, cover for the contractor's workers under the new labour codes, and professional indemnity, with the wording that makes them real.
CEIG Approval in Gujarat: Electrical Inspector Process for Factories and Solar
How CEIG approval works in Gujarat: which installations the Chief Electrical Inspector clears, the plan-to-permission sequence, the drawings the state's checklist lists for HV, DG and solar, and what the test certificate asks.
CEIG Approval in Maharashtra: Electrical Inspector Process for Factories and Solar
How CEIG approval works in Maharashtra: when the Electrical Inspector must clear an installation, who approves by voltage band, the plan-then-charging sequence on Mahaonline, what to put in the file, and how solar fits in.
CEIG Approval in Tamil Nadu: Electrical Inspectorate Process for Factories and Solar
Who needs the Electrical Inspector in Tamil Nadu under G.O. Ms. No. 98 of 2024, the sequence from drawing approval to safety certificate, the documents each stage asks for, and the CEA solar safety points an inspector checks.
Chemical vs Conventional Earthing: Pits Compared for a Factory
A neutral comparison of chemical earthing and conventional earth pits for a factory: how each lowers resistance, a side-by-side table, decision rules from soil resistivity, and what to ask suppliers and inspectors.
Chiller Cost per TR: Plant Cost Drivers, Efficiency Class and Lifecycle
Why a chiller cost per TR means little without a scope, what actually drives the cost, what the BEE energy code asks of chillers and plants, and how to compare bids on lifecycle energy.
Choosing an Industrial Electrical Contractor: Licences, HT Capability and the CEIG Record
How to choose an industrial electrical contractor: the state licence and competency-certificate checks the law requires, how to test HT capability and instruments, and how to read a contractor's CEIG approval record.
Clean Agent vs Water Mist vs CO2: Choosing Special-Hazard Fire Suppression
A neutral comparison of clean agent, water mist and CO2 systems for server rooms, switchgear, DG rooms and machinery spaces: where each fits, what each asks of the room, the environmental rules that apply, and what to check before you order.
Comprehensive or Non-Comprehensive MEP AMC: Which Suits Your Plant?
A side-by-side comparison of comprehensive and non-comprehensive MEP AMC, what each usually covers and excludes, and decision rules by equipment age, criticality, in-house skills and budget certainty.
Cooling Tower Selection for a Factory: Capacity, Water Quality and Cost Drivers
How to size a cooling tower from the chiller heat balance, why design wet-bulb and approach set the price, what water quality does, and the cost drivers to pin down in a quotation.
DC Cable Sizing and String Design for a C&I Plant: Losses, Voltage Drop and Safety
How to size DC cable and design strings for a commercial or industrial solar plant: cold-weather voltage limits, derating, a worked voltage-drop table, connector and arc risks, and how to check an EPC's design.
Documents Required for a Fire NOC Application: The Complete List by Stage
The documents a Fire NOC file needs at the provisional and final stage, with what Delhi, Rajasthan, Telangana, Himachal Pradesh, Uttar Pradesh and Odisha actually ask for, and what the drawing set must show.
East-West vs South-Facing Layout on a Flat Roof: Capacity vs Yield Trade-Off
East-west layouts fit more kilowatts on a flat roof; south-facing layouts earn more per kilowatt. A side-by-side table, the row-spacing arithmetic, load match, wind and cleaning access, and a five-step way to decide.
Fire Alarm System for a Factory: Addressable vs Conventional, Device Count and Cost Drivers
What drives the cost of a factory fire alarm: addressable versus conventional panels, how detector counts are built from the floor plan, and the cable, interface and maintenance lines to check in any quote.
Fire NOC and Fire Licence for a Factory in West Bengal: WBFES Process and Renewal
West Bengal has no single fire NOC. WBFES issues a fire safety recommendation, a fire safety certificate for high-risk buildings and a fire licence for hazardous storage. Here is which one a factory needs, how to apply on SilpaSathi, and what to check at renewal.
Ready to start your project?
Get a free consultation and quote. We design, prepare and file your approvals, and execute — you deal with one team.
Related guides
- Three Vendors, One Roof, Three Different Generation Figures.
- Your BOQ Said 1,000 M. Site Said 1,470 M. Who Pays for the Missing 470 M?
- Perovskite Cells Promise 30%+ Efficiency. Your Roof Doesn't Have Ten Years to Wait and See.
- The Future of MEP Engineering: 5 Technologies to Watch
- The MSME Act Just Changed. Here Is What It Means for a Factory Owner.
- How Many Units a 500 kW Solar Plant Generates: Per Day, Month and Year
Related on this site
- termMEPF
- termDCR Modules
- termEPC
- serviceSTP / WTP / ETP (Plumbing)
- serviceNet-Metering, Metering & Monitoring (Solar EPC)
- calculatorMEP Quotation Comparison Calculator
- calculatorSolar Subsidy Calculator
- buyer's guideHow to Select an MEP Contractor
- guideNBC 2016 fire and life safety for factories
- guideFire NOC for factories