India's First
Energy as a Service (EaaS).
Diesel, batteries, AMC, insurance — managed as one outcome: operations that don't stop.
One contract covers BESS sizing, install, AMC and insurance. Your team manages zero vendors.
Owning, Renting or DIY Backup — Same Burden, Different Name
Understand the diesel vs BESS economics first: BESS vs Diesel Generator — Full Cost Comparison →
Capital locked up. Four-plus vendor contracts. Risk that lands on you, not a provider. Buy a BESS, rent one, or run DG alone — you own the operational burden, not the outcome.
Operational Burden, Not Optional
EMS operation, maintenance, SoH monitoring, spares, fault response — split across separate vendors for hardware, insurance and AMC. Power isn't your core business. This cost rarely makes the original case.
CapEx Approval Cycle
A ₹1–5 Cr BESS investment needs board approval — 6–18 months typical. Meanwhile you keep paying ₹25–30/kWh for diesel and absorbing every outage.
Technology Obsolescence Risk
Battery tech moves fast. Buy today, own a 3–5-year-old asset you're still depreciating for 10. You carry the stranded-asset risk — not the provider.
PWRNXT's answer: don't buy, rent or self-manage any of it. Pay for continuity as one outcome, across three tiers. See how the tiers work →
Three Tiers. One Outcome: Continuity.
Start where your facility is today. Grow into the next tier as confidence builds. Every tier — one contract, one invoice, zero ops burden.
Every tier ships on the same 6–8 week go-live and 98.5% uptime SLA. What changes is how much of your annual runtime shifts off diesel.
Tier 1 · Entry
Managed Hybrid
Best fit: sites facing frequent, longer outages from an unstable grid.
30% DG · 70% BESS
BESS carries daily load. Your diesel stays — as on-call insurance, not a standing cost.
Tier 2 · Growth
BESS Primary
Best fit: sites where most outages run under 2 hours, or are scheduled.
10% DG · 90% BESS
Battery carries almost all load. Diesel becomes a true emergency-only reserve.
Tier 3 · Full Autonomy
Autonomous
Best fit: sites navigating solar banking limits, ToD tariffs and regulatory caps.
5% DG · 30% BESS · 65% Solar
Battery plus solar (typical fit: 250kW+ rooftop/ground-mount). Diesel becomes a force-majeure backstop, nothing more.
Extended-duration configurations (4–8 hrs continuous backup) for cold chain, hospitals, campuses and data centres are available within any tier — at no additional CapEx.
Enterprise with 3+ facilities? Get a unified multi-site EMS dashboard and consolidated tier-level billing across your portfolio →
The Financial Architecture Behind Every EaaS Tier
Whichever tier your facility is on, four things change on your P&L from day one — this is the financial engineering behind the continuity you're paying for.
Zero Capital Investment*
PWRNXT purchases, finances, installs and insures the BESS. Your organisation contributes ₹0* — no CapEx approval, no impact on capital employed. Deployment begins within 6–10 weeks, financed through NBFC and green capital fund partners.
100% Tax-Deductible OpEx*
Payments are expensed as OpEx — 100% tax-deductible in the period incurred, no depreciation schedule, no IND AS 116 balance sheet recognition under most structures. Your CA firm reviews before you sign.
Off Balance Sheet*
The BESS sits on PWRNXT's balance sheet, not yours — capital employed, ROCE, debt covenants and leverage ratios stay unaffected. Often the deciding factor for balance-sheet-constrained enterprises.
Technology Risk Transferred
PWRNXT absorbs all technology obsolescence risk. At renewal you upgrade to the latest available system rather than extending a depreciating one — always current-generation, warranted technology.
From Enquiry to Live Power Backup EaaS — Four Steps
Fast and transparent. Most clients go from first conversation to a signed EaaS contract in under 30 days.
Feasibility Study & Tier Recommendation
Share your energy bills and DG operational data. Our engineers conduct a techno-economic study — baselining your load, outage profile, and costs to right-size the BESS, recommend the tier to start on, and quantify the financial case.
P&L & EaaS Proposal
We model your complete P&L impact — EaaS cost, energy savings, maintenance savings, production loss prevention — alongside the contract term sheet for your recommended tier. Fully auditable assumptions, nothing hidden.
Legal & Commercial Review
Standard 5–7 year EaaS contract. Your finance and legal teams review the SLA, exit provisions and performance guarantee terms. We disclose every clause transparently — no surprises at signing.
EPC & Go-Live
PWRNXT manages the full installation — design, procurement, civil works, commissioning and Site Acceptance Testing. System live within 6–10 weeks. PWRNXT manages and operates everything from go-live, including your path to the next tier.
The Commitments Behind Every EaaS Contract
What you can hold us to, on any tier.
Tier-1 OEM Components
CATL, BYD, EVE cells. Sungrow, Delta electronics. UL 9540A, IEC 62619, CE certified. LFP only — no thermal runaway.
Contractual SLA, Not Best-Effort
98.5% uptime is a written obligation with defined remedies — not a marketing claim. Your finance team can model the worst case.
Proven in Live Deployments
Haryana auto-ancillary site: 200+ outage events, zero production impact. Live, verified, auditable — not a pilot.
Full Contract Transparency
Exit terms, renewals, upgrade paths, next-tier options — every clause disclosed before signing. Nothing buried.
24/7 Remote EMS Operations
Every parameter monitored continuously. Faults flagged 2–4 weeks early. Your team's operational workload: zero.
ESG and BRSR-Ready Reporting
Every kWh dispatched, outage prevented, tonne of CO₂ avoided — logged and exportable for annual reporting.
Backed by Financing Partners
Contracts underwritten by NBFCs and green capital funds — not founder balance sheets. Hybrid CapEx/OpEx available on request.
Ecosystem Compatibility
Integrates with Cummins, Kirloskar, Greaves DG panels. Co-financed by IREDA, REC, L&T Finance and major green funds.
Power Backup EaaS FAQ
The questions CFOs, Finance Directors and plant/operations heads ask us most.
Does BESS fully replace my diesel generator?
Not usually, by design. In Managed Hybrid and BESS Primary, your DG stays as on-call insurance. Only in Autonomous, paired with solar, does diesel become a pure force-majeure backstop.
What happens during an extended outage — floods, transmission faults, substation failures?
Every EaaS contract includes a continuity SOP. Your BESS covers the outage window; for longer outages, PWRNXT coordinates on-call diesel access as part of the managed service — at every tier.
Is the PWRNXT operating lease truly off-balance-sheet under IND AS?
For most operating leases below the IND AS 116 recognition threshold, payments are expensed as OpEx with no balance sheet recognition. We provide full documentation for your auditors — and recommend your CA firm reviews the structure before signing.
How does zero-capex BESS work — who actually owns the equipment?
PWRNXT purchases, finances, installs and insures the BESS. It sits on our balance sheet, not yours. Zero capital*, zero depreciation, zero technology risk for your organisation.
What happens at the end of the contract term?
Four options: renew at a reduced rate, upgrade to a new-generation BESS at the same or a higher tier, buy out at a pre-agreed residual value, or let PWRNXT remove the equipment. No balloon payment, no write-off risk, in any scenario.
Who finances the BESS — and can we have a hybrid CapEx/OpEx structure?
PWRNXT structures contracts through NBFC and green capital fund partners, not solely its own balance sheet. A hybrid model — partial ownership plus an OpEx component — is available through the same partners on request.
How does the quarterly EaaS payment compare to current diesel generator costs?
For most clients, it's structured at or below current all-in diesel spend — fuel, maintenance, operator and AMC combined. Most see positive net cash flow from month one.
Can we terminate the contract early if our situation changes?
Yes. Exit provisions are defined upfront, with a termination fee that reduces progressively over the contract term. No contractual traps.
Is Power Backup EaaS available for multi-site enterprise deployments?
Yes. A single master agreement, unified SLA and a consolidated multi-site EMS dashboard across facilities — tiers can be set independently per site. Built for enterprise clients with 3–10 sites.
Does Power Backup EaaS add value beyond backup, like fault monitoring or tariff savings?
Yes. Our 24/7 remote EMS typically flags faults 2–4 weeks before failure, and ESG/BRSR reporting is auto-generated from the same system — no manual tracking on your side. For facilities on Time-of-Day tariffs — cold storage, hospitals, campuses — the BESS also peak-shaves during high-tariff windows, adding savings beyond pure backup replacement.
Not the Right Fit? Start Here Instead.
Power Backup EaaS is one of three ways PWRNXT solves your energy problem. These two might match your site better.
Replace Your Diesel Generator
Diesel costs ₹25–30/kWh all-in. PWRNXT BESS delivers the same backup for ₹7–8/kWh, sub-10ms switching, and a contractual 98.5% SLA.
Solar ROI Recovery — Maharashtra
Free banking is over. MERC's evening D-zone pricing creates an ₹11.49/unit gap. PWRNXT BESS closes it by storing and dispatching your solar at peak hours.
Get Your Power Backup
EaaS Proposal.
Share your DG capacity and monthly diesel spend. Our engineering team will scope a feasibility study, recommend the right tier, and return a detailed P&L model — EaaS cost, energy savings, balance sheet impact and Year-1 cash flow — within 2 business days.