Energy technology consulting

Independent advice, before you spend

Decisions about storage, charging, solar, backup and the connection behind them lock in cost, safety and performance for a decade or more. As energy technology consultants, we help you make them on evidence: your load data, your tariff, your site and the rules that apply, not a vendor's brochure.

Talk to usSend a quoteChoose the right role
Fig.: Reading a site before sizing anything. Schematic, not to scale.

Consulting services

The questions worth answering before you buy

Each engagement ends in a document you can use: to decide, to tender, or to hold a contractor to.

Before you buy

  • Load & tariff study

    We analyse 12 months of bills and 15-minute interval data against your tariff's time-of-day windows, demand charges and power-factor terms, and find what drives the cost.

    Deliverable: Load & tariff report

  • Energy & power-quality assessment

    Before any battery: power factor, harmonics, voltage dips, contract demand and load scheduling. We list the low-cost fixes that should come first, such as capacitor banks, demand settings and moving a process, and say when storage is not the answer.

    Deliverable: Assessment note with first-step measures

  • Storage feasibility & sizing

    Power (kW), energy (kWh), duration, depth of discharge, degradation and augmentation, sized to the jobs the battery must do, with the value calculated from your data and every assumption shown.

    Deliverable: Feasibility report with sizing options

  • Technology selection

    Chemistry, with lithium iron phosphate (LFP) as the default for stationary storage; cabinet or container; AC- or DC-coupled; air or liquid cooling; and what suits a hot, humid or coastal site.

    Deliverable: Technology options note

  • Solar-plus-storage & genset hybrid studies

    How storage changes your solar self-consumption and your diesel or gas genset running hours, and the control logic needed to make the three work together.

    Deliverable: Hybrid operating concept

  • EV charging site feasibility

    Charger mix, connection size and sanctioned load, tariff category, and whether a battery buffer beats a transformer upgrade.

    Deliverable: Site feasibility & connection plan

  • EV fleet transition study

    For e-3W, cab, delivery and bus fleets: duty cycles, dwell times, charger mix, depot power and tariff category, phased so the connection and the chargers grow with the fleet.

    Deliverable: Fleet charging plan

  • Technical due diligence

    For lenders, investors, lessors and buyers of storage, solar-plus-storage or charging assets: design, equipment certificates, warranties, contracts, performance data and compliance, reviewed independently.

    Deliverable: Due-diligence report

  • Tender & bid support

    For public bodies, developers and contractors: technical specifications, bid documents and compliance matrices for storage or charging work, with local site and approvals input for southern Tamil Nadu.

    Deliverable: Tender specification or bid compliance matrix

  • Compliance & approvals roadmap

    What the CEA regulations, the Electrical Inspectorate, your distribution company (DISCOM), the fire service and the battery-waste rules require for your project, and when.

    Deliverable: Compliance checklist & timeline

  • Energy roadmap for campuses & multi-site owners

    A phased plan across solar, storage, charging and backup, so each step makes the next one easier.

    Deliverable: Phased roadmap

While it's built

  • Owner's engineer & specifications

    Technical specifications aligned to the CEA's 2026 battery energy storage system (BESS) safety and construction regulations and IEC 62933 test methods; bid evaluation; design review; site supervision on your behalf.

    Deliverable: Specification & bid evaluation matrix

  • Factory audits & FAT witnessing

    We check the product and the paperwork at the factory: cell and pack test reports, battery management system (BMS) behaviour, fire-system interlocks and module traceability.

    Deliverable: Factory acceptance test (FAT) report

  • Safety & risk review

    A hazard review of layout, spacing, ventilation, detection and suppression, based on the OEM's UL 9540A fire-test data, plus an emergency response plan for your site.

    Deliverable: Safety design memo & response plan

Once it's running

  • CEA 2027 readiness review (existing BESS)

    The CEA's battery-storage safety chapter takes effect on 1 April 2027 for systems connected above 650 V. It requires an independent third-party fire-safety audit under a procedure the CEA is to issue, sets a three-month window from 1 April 2027, and asks for the report at the Electrical Inspector's inspection. We check your system and records against the chapter, list the gaps and prepare the audit pack. We are not the auditor.

    Source: CEA, CEA (Measures relating to Safety and Electric Supply) Amendment Regulations 2026, reg 122(M) (opens in a new tab) (Gazette, 30 March 2026).

    Deliverable: Gap list & audit-readiness pack

  • Independent health check

    For batteries, chargers or hybrid systems already in service: inspection, a capacity and efficiency test, alarm and log review, and a plain list of what to fix, whoever installed it.

    Deliverable: Health-check report

One partner, six roles

The role your project needs, stated in writing

Every proposal names our role, what we're responsible for, and what stays with the equipment maker, the authority or you. Roles can change as a project moves, and when ours does, we say so in writing.

  • Consultant

    We work for you, independent of any equipment sale.

    We do

    • Load, tariff and feasibility studies
    • Specifications and bid evaluation
    • Design review and factory and site acceptance test (FAT/SAT) witnessing
    • Site supervision and commissioning witness on your behalf

    You get

    • Deliverable: Feasibility report
    • Deliverable: Technical specification
    • Deliverable: Bid evaluation matrix
    • Deliverable: Witness reports and punch lists

    Choose this when

    You plan to tender the work, want a second opinion on a vendor's proposal, or need an owner's engineer on a larger project.

    Who holds what: The contractor you appoint holds design and delivery responsibility; we check it for you.

  • EPC contractor

    One engineering, procurement and construction (EPC) contract, one point of responsibility, a working system at the end.

    We do

    • Design and engineering
    • Vendor-neutral procurement
    • Civil and electrical works, installation and integration
    • Testing, commissioning, approvals and training

    You get

    • Deliverable: Commissioned, approved system
    • Deliverable: As-built drawings and test records
    • Deliverable: Commissioning report and operations and maintenance (O&M) manuals
    • Deliverable: Equipment warranties passed through to you

    Choose this when

    You want one accountable party and a system that works on day one.

    Who holds what: We are responsible for design and workmanship; product warranties come from the equipment makers, back-to-back.

  • Installation contractor

    Careful installation of equipment you have already chosen: a battery cabinet, solar inverters or a charging network's chargers.

    We do

    • Site preparation, foundations and cabling
    • Terminations with torque logs, earthing and surge protection
    • Protection settings and pre-commissioning checks
    • Commissioning with the maker and full documentation

    You get

    • Deliverable: Installation and inspection records
    • Deliverable: Commissioning report
    • Deliverable: Photo record and as-built drawings

    Choose this when

    The equipment is already bought or specified by a network or OEM, and you need it installed properly.

    Who holds what: The supplier owns product design and warranty; we own installation workmanship.

  • System integrator

    We make batteries, power conversion systems (PCS), solar inverters, diesel generator (DG) set controllers, chargers, meters and the energy management system (EMS) behave as one system.

    We do

    • Interface design and protection coordination
    • Control philosophy and EMS logic
    • Communications: Modbus, IEC 61850, IEC 60870-5-104, Open Charge Point Protocol (OCPP)
    • Integration testing and cybersecurity basics

    You get

    • Deliverable: Interface responsibility matrix
    • Deliverable: Control philosophy document
    • Deliverable: Integration test report

    Choose this when

    You're adding storage or chargers to existing solar, DG sets or buildings, or mixing equipment makers.

    Who holds what: We own the interfaces and the system-level behaviour.

  • Facilitator

    We handle the applications, the paperwork and the people.

    We do

    • DISCOM (TNPDCL) applications for connections, load changes and EV services
    • Electrical Inspectorate drawing approval and safety certificate
    • Fire NOC coordination; PESO where chargers sit at fuel stations
    • Subsidy and scheme paperwork where you are eligible
    • Lender and insurer documentation; OEM and vendor coordination

    You get

    • Deliverable: An approvals file with every application, letter and certificate

    Choose this when

    You have equipment and a contractor but need it approved and connected, or you're weighing finance options.

    Who holds what: Authorities decide approvals and their timelines; we prepare complete applications and follow them through.

  • O&M partner

    We look after storage, solar and chargers for their working life, including systems someone else installed.

    We do

    • Remote monitoring and alarm response
    • Preventive and corrective maintenance, spares
    • Annual capacity and efficiency tests
    • Compliance records and OEM warranty claims

    You get

    • Deliverable: Monthly performance report
    • Deliverable: Maintenance logs
    • Deliverable: Annual test report

    Choose this when

    You have a system, ours or not, and want it to keep performing.

    Who holds what: Scope, response times and exclusions are defined in the annual maintenance contract (AMC).

Electrical installation work is carried out and certified by appropriately licensed contractors and supervisors, as Tamil Nadu rules require.

Which role do you need?

Start from where you are

Fig.: Pick the starting point that matches your situation.
  1. I have a vendor's quote and want to know if it's right.Role: Consultant
  2. I want a working system with one accountable party.Role: EPC contractor
  3. I've already bought chargers or a battery cabinet.Role: Installation contractor
  4. I'm adding storage to solar, DG sets or existing chargers.Role: System integrator
  5. I'm stuck on connections, inspections or paperwork.Role: Facilitator
  6. I have a system that needs looking after.Role: O&M partner

  7. I'm not sure yet.

    Start with a conversation. Most projects begin with a study and continue into delivery and O&M, and we'll tell you where we fit.

    Talk to an engineer

Projects often start with a study, continue with EPC or integration, and keep us on for O&M. Some owners need us for one stage only. Both work.

What you get

Deliverables, named in advance

  1. Load & tariff reportWhat drives your bill: peaks, demand, power factor, DG hours.
  2. Feasibility & sizing reportOptions with kW, kWh, duration, degradation plan and the value calculation, assumptions shown.
  3. Single-line diagram (SLD)How the new system connects to your existing electrical network.
  4. Safety layout & design memoSpacing, ventilation, detection, suppression, access and emergency stops.
  5. Technical specificationWhat to buy, to which standards, with which tests and warranties.
  6. Bid evaluation matrixVendors scored against published criteria.
  7. FAT reportWhat we saw and tested at the factory.
  8. Interface responsibility matrixWho owns each interface between equipment and makers.
  9. Commissioning reportEvery functional, safety and performance test, with results.
  10. Approvals fileApplications, correspondence and certificates.
  11. O&M manual & training recordHow to run it, what to watch, who was trained.
  12. Monthly performance reportEnergy, efficiency, availability, alarms and actions.
  13. Annual capacity test reportMeasured available energy and round-trip efficiency against the warranty.
  14. End-of-life planHow the batteries will be tested, repurposed or recycled, and by whom.
  15. Due-diligence reportIndependent findings on design, equipment, contracts and performance, for lenders and investors.
  16. Audit-readiness packGap list and records prepared for the CEA third-party fire-safety audit.

Leadership credentials

Experience you can check

Our consulting draws on the individual experience of our leadership. The credentials below are held by the people named.

  • Deepak Solomon, Chief Executive Officer

    Deepak Solomon

    Chief Executive Officer

    22+ years in energy business, incl. Generac & Pramac gensets and large standby projects

  • Maria Jennifer, Director

    Maria Jennifer

    Director

    14+ years in key accounts and partner ecosystems with Samsung Electronics Gulf

  • Venkat, Chief Technology & Business Advisor

    Venkat

    Chief Technology & Business Advisor

    PMP®, PgMP® · Fellow IE(I) · Chartered Engineer · ISO 9001 & 14001 Lead Auditor

Meet the leadership

Questions about consulting

No. Sometimes the better first step is reducing contract demand, fixing power factor, moving a process or adding solar. A battery has to earn its place, and a good study tells you when it won't.

Only if you want us to. When we act as your independent consultant, we tell you in writing before quoting to supply, and you remain free to tender the work to others.

12 months of electricity bills, 15-minute interval data if your meter records it, your contract demand, single-line diagram, DG details and running hours, any solar data, and a site walk.

It depends on the site and the data available. After a first conversation we quote a fee and a timeline for your study.

If it is connected above 650 V, the CEA's battery-storage safety chapter applies. It requires an independent third-party fire-safety audit under a CEA procedure, within a three-month window from 1 April 2027, with the report produced to the Electrical Inspector. Systems at 650 V and below must meet the relevant standards, which the CEA is to list. We can review your system against the chapter and prepare you for the audit.

Yes. As owner's engineer we review the design, witness factory and site tests, and check commissioning on your behalf.

The CEA regulations, including the 2026 BESS safety and construction amendments that apply from 1 April 2027; IEC 62933 (IS 17067) test methods; and equipment certified to IEC 62619, UL 1973, UL 9540 or equivalents, with UL 9540A fire-test data.

Our base is Nagercoil. Delivery work is centred on Tamil Nadu and Kerala; consulting and owner's-engineer work can go wherever the project is.

Start with a conversation

Bring us the quote, the bill or the question.

We'll tell you what we'd check first, and whether a study is worth it.

Talk to an engineerTalk to an engineer

Call +91 7200788891WhatsApp (opens in a new tab)info@che-energy.in