Sun Drops Energia Private Limited was incorporated in May 2019 as a subsidiary of KPI Green Energy Limited — the Surat-based renewable energy company you might know better as KPIGREEN on your trading app. Think of Sun Drops as KPI Green's smaller sibling — same playbook, smaller scale, and (increasingly) a very different job.
Like its parent, Sun Drops runs on two business engines:
1. Independent Power Producer (IPP) — "Own it, run it, get paid for 25 years"
Sun Drops builds and owns solar and hybrid power plants, then sells the electricity to third parties under long-term Power Purchase Agreements (PPAs) — typically 25-year contracts. Think of this as the annuity business: capital-heavy upfront, but once the plant is up and running, it throws off predictable, high-margin cash flow for decades. Sun Drops' IPP assets include an 8 MW solar plant near Ranada (Bharuch) and a 13.6 MW hybrid solar-plus-wind project in Gandhar/Samiala.
2. Captive Power Producer (CPP) — "Build it for others, bill by the milestone"
This is the EPC (engineering, procurement, construction) side. Sun Drops builds solar plants for businesses that want to generate their own power (instead of buying expensive grid electricity), while also giving them access to shared land and power-evacuation infrastructure. Revenue here is recognized milestone-by-milestone as projects get built — so it's lower-margin than IPP, but it's the segment driving most of the top-line growth right now.
3. The new bit — Battery Energy Storage Systems (BESS)
Here's where it gets interesting. In August 2025, KPI Green's management announced that Sun Drops would be carved out as the group's dedicated BESS vehicle — the business that stores solar/wind power in giant batteries and discharges it when the grid needs it (solar generates during the day, demand often peaks at night — batteries bridge that gap).
The mandate, per KPI Green's CFO Salim Yahoo: Sun Drops will handle smaller storage and renewable projects (0–35 MW), aimed at MSMEs and smaller customers, while KPI Green keeps the large, utility-scale projects under its own roof. This isn't a random reshuffle — it's a deliberate move to give the fast-growing, capital-hungry BESS business its own dedicated balance sheet and fundraising engine, separate from the parent.
And Sun Drops isn't just talking about BESS — it's already executing. The subsidiary has signed Battery Energy Storage Purchase Agreements (BESPAs) with Gujarat Urja Vikas Nigam Limited (GUVNL) for 445 MW/890 MWh and, more recently, 120 MW/240 MWh of standalone battery storage — taking the group's cumulative executed BESS portfolio to 565 MW/1,130 MWh. These are big-ticket, government-backed orders (with Viability Gap Funding support), and they're the reason this "small subsidiary" suddenly needs its own IPO.
IPP: Sell electricity → Get paid monthly/quarterly under PPA → High margin (~85–90% EBITDA margin, per group-level commentary), low revenue growth (capacity-linked), long gestation.
CPP/EPC: Build a plant → Bill on completion milestones → Lower margin (~16–18% EBITDA), but scales fast with order-book execution.
BESS (new): Build-own-operate battery storage → Get paid via long-term storage purchase agreements + government viability gap funding → Margin still evolving (tender-price dependent), but this is the segment management is betting the IPO capital on.
Here's the standalone financial trajectory, pulled straight from Sun Drops' audited financial statements (FY24, FY25) and KPI Green's Q4 FY26 earnings call commentary on the subsidiary (FY26):
Particulars (₹ Crore) | FY24 | FY25 | FY26 |
|---|---|---|---|
| Revenue from Operations | 168.1 | 366.7 | 586.0 |
| EBITDA | 39.7 | 78.5 | — |
| PBT | 35.2 | 69.1 | 130.0 |
| PAT | 27.2 | 51.2 | 97.0 |
| EBITDA Margin | 23.6% | 21.4% | — |
| PAT Margin | 16.2% | 14.0% | 16.6% |
A few things jump out:
Revenue more than doubled from FY24 to FY25 (+118%), and grew another ~60% in FY26 — impressive even by renewable-sector standards, where 40–50% YoY growth is already considered strong.
PAT has grown almost as fast as revenue (+89% both years) — margins have held up nicely even as the business scales, which is a good sign for a company that's about to ask public investors for money.
Profitability is holding in the mid-teens as a % of revenue — reasonable for a business still weighted toward EPC/CPP (lower margin) rather than IPP or BESS (higher margin, but still ramping).
This is where it gets a bit more textured. Since late 2024, Sun Drops has raised fresh capital multiple times — a mix of bonus shares, a rights issue, and three rounds of preferential allotments, all at ₹460 per share (face value ₹10 at the time):
Date | Shares Issued | Price (₹) |
|---|---|---|
| 13-Dec-24 | 34,92,362 | 460 |
| 27-Dec-24 | 36,38,502 | 460 |
| 03-Mar-25 | 19,80,419 | 460 |
By March 31, 2025, total paid-up capital stood at 4,33,65,686 shares (FV ₹10). In June 2025, the company split its face value from ₹10 to ₹5, doubling the share count to 8,67,31,372 shares.
Adjusted for the split, that ₹460 private-placement price becomes ₹230 per share (FV ₹5) — and that's the most recent "real" price anyone has paid for Sun Drops equity.
Using that last transaction price as a reference point:
Metric | Value |
|---|---|
| Implied Market Cap (8.67 Cr shares × ₹230) | ~₹1,995 Cr |
| FY26 Revenue | ₹586 Cr → Implied P/S ≈ 3.4x |
| FY26 PAT | ₹97 Cr → Implied P/E ≈ 20.6x (EPS ≈ ₹11.19) |
For context, parent KPI Green Energy itself currently trades at a P/E in the ~15–20x range on the exchanges. So Sun Drops' implied private-market valuation is roughly in line with — not meaningfully at a premium to — its own parent.
That's a little odd on the surface, because Sun Drops is now positioned as the group's dedicated growth bet on BESS — a segment that typically commands higher multiples than mature solar IPP/CPP businesses, given the policy tailwinds and early-stage growth curve. Two explanations are plausible:
The ₹460 reference price is stale. It reflects a November 2024 valuation exercise built largely on the old IPP+CPP business mix — before the BESS pivot was even announced (August 2025). A fresh DRHP-stage valuation, done today with BESS orders like the 565 MW/1,130 MWh GUVNL portfolio already in hand, would likely price the business meaningfully higher.
BESS margins are still unproven at scale. Management itself has cautioned that BESS returns depend heavily on tender pricing and Viability Gap Funding structures — it's not automatically as lucrative as the IPP annuity model. Investors (and valuers) may simply be waiting for more data before assigning a premium multiple.
Here's the roadmap, based on management's own commentary across multiple earnings calls:
Purpose: Raise dedicated equity capital to fund build-own-operate BESS projects — described by CFO Salim Yahoo as having "₹2,000–3,000 crore execution potential," requiring "a focused vehicle and fresh capital."
Timeline: DRHP preparation was already underway as of the August 2025 call. As of the Q4 FY26 (May 2026) call, management reiterated the listing is targeted within this financial year (FY27).
Structure post-listing: KPI Green will retain majority ownership — a minimum of 51% stake — with Sun Drops' financials continuing to be consolidated into KPI Green's own books. So this isn't a full divestment; it's more like unlocking a separately-listed growth vehicle while keeping control at the parent level.
Segment demarcation: Sun Drops will own the 0–35 MW category (smaller renewable + storage projects, MSME-focused), while KPI Green retains large utility-scale and institutional projects. This keeps the two entities from competing for the same customers.
BESS order execution — The 565 MW/1,130 MWh GUVNL portfolio (across two BESPAs) is the single biggest swing factor for Sun Drops' next few years of revenue. How fast these convert from signed orders to billed, operating capacity will determine whether FY27–28 growth outpaces the group's own 40–50% guidance.
Policy tailwinds for storage — Battery storage is increasingly being mandated as a "must-have" companion to renewable capacity in India (several states have declared BESS-compatible policies), and Viability Gap Funding is actively subsidizing early projects. This is a structurally growing category, not a one-off order.
Segment focus reduces internal competition — By carving out the 0–35 MW bucket specifically for Sun Drops, KP Group avoids cannibalizing its own pipeline and gives Sun Drops a cleaner, more nimble mandate to chase smaller, faster-turnaround deals.
Fresh IPO capital — Once listed, Sun Drops gets direct access to public capital markets rather than relying solely on KPI Green's balance sheet or private placements — critical given how capital-intensive build-own-operate BESS projects are.
Parent's execution track record — KPI Green Group has already built ~565 MW/1,130 MWh of BESS capacity through Sun Drops and has a demonstrated ability to win competitive government tenders (GUVNL, SJVN, and others) — a credibility advantage most first-time BESS entrants won't have.
Sun Drops Energia is transforming from "just another KPI Green subsidiary doing small-scale solar EPC" into the group's dedicated bet on India's battery storage boom — and it's about to test that thesis in the public markets. The financials so far (revenue nearly 3.5x-ing and PAT nearly 3.6x-ing between FY24 and FY26) suggest the underlying business is executing well. Whether the IPO prices in a premium for the BESS opportunity — or whether it lands closer to the parent's own more modest multiple — will be the thing to watch once the DRHP actually hits SEBI's desk.
Numbers sourced from Sun Drops Energia's audited standalone financial statements (FY24, FY25), KPI Green Energy's Q4 FY26 earnings call (May 2026), company valuation report (Nov 2024), and public disclosures/press coverage on the planned IPO. This is not investment advice — do your own diligence before making any investment decisions.