Heaven Group Solar Ecosystem Explained

If you sell or install rooftop solar in India, you have probably bumped into at least one Heaven Group company without realising it was part of a larger family. Your competitor's proposal PDF may have come out of QuickEstimate. The inverter on a Surat rooftop may carry a Qbits nameplate. The yield report in a 500 kW bid may have been generated on SurgePV.

This post maps the full picture. We walk through all 5 Heaven Group portfolio companies, what each one does, who it serves, and where it sits in the solar value chain, from the first site design to the signed proposal. We also show you how a single residential lead can travel through the entire stack, and what that means for you if you run an independent EPC (Engineering, Procurement and Construction) business.

The important nuance: 4 of the 5 companies sell tools and services to other EPCs, not just to end customers. So whether or not you ever compete with Heaven Green Energy for a rooftop job in Gujarat, the other 4 companies are part of the vendor market you already buy from. This guide tells you what each one actually offers, in plain terms.

What is the Heaven Group solar ecosystem?

The Heaven Group is a Surat, Gujarat-based group of 5 solar companies that together cover every stage of a solar project, from lead capture and design to hardware, installation, and after-sales monitoring. The group built each company around a specific bottleneck its founders hit while running their own EPC work in Gujarat, starting with Heaven Green Energy in 2017.

India's solar market added roughly 26 GW of new solar capacity in the first half of 2026 alone, about 43% more than the same period in 2025 (JMK Research, 2026). Growth at that pace rewards companies that control more than one link of the chain, because margin leaks happen at the handoffs: design to quote, quote to procurement, procurement to installation.

That is the logic behind the group's structure. Instead of one company doing everything, each portfolio company specialises in one stage and sells to the open market. Heaven Green Energy buys design work like any EPC. Other EPCs buy Qbits inverters like any brand. The companies share knowledge, not customers.

The 5 Heaven Group companies at a glance

Five companies cover the 5 stages: design software, engineering consultancy, inverter hardware, EPC execution, and sales software. The table below is the fastest way to see who does what and which company fits your need.

Notice that 4 of the 5 sell to EPCs like yours, not to end customers. Only Heaven Green Energy competes for rooftop jobs directly. The rest are vendors you can evaluate on merit, the same way you would evaluate any inverter brand or any solar design software.

Heaven Green Energy: the EPC arm

Heaven Green Energy is the group's execution company, a residential and commercial EPC founded in 2017 with 10,000+ installations completed and the #1 rating among residential EPCs on the PM Suryaghar Portal (Heaven Green Energy, 2026). It is also an authorized Adani Solar distributor, averages 38 days from order to installation, and runs C&I rooftop, ground-mount, and PM-KUSUM project lines out of Surat.

Why does an EPC arm matter inside a group of software and hardware companies? Because it is the test bed. A proposal flow that fails a Surat sales rep in the field gets fixed fast. An inverter alarm that annoys a homeowner gets redesigned. This is the opinionated take: we think design software built by people who have never installed a rooftop tends to optimise for pretty renders, not for what survives a monsoon on a concrete roof in Vesu. The group's products carry field scars, and that is a feature.

For context on what an EPC actually does across a project, our explainer on what a solar EPC is and the step-by-step solar installation process cover the standard workflow Heaven Green Energy runs at scale.

Qbits Energy: the inverter manufacturer

Qbits Energy is the group's Indian inverter brand, building on-grid and hybrid inverters from 1 kW residential units up to 110 kW industrial models (Qbits Energy, 2026). The published specs: 98.8% efficiency, an 8+4 year full replacement warranty, IP66 enclosures for outdoor mounting, BIS IS 16221 and IEC 62109/62116 certification, and ISO 9001:2015 manufacturing.

The numbers that matter for an EPC: 100,000+ inverters installed, presence in 25+ states through 500+ distributors, and a service response commitment under 48 hours. Each unit goes through 1,000+ automated quality tests, and every inverter ships with an AI-powered monitoring app plus WhatsApp alerts, so the customer and your service team see generation faults before the electricity bill does.

Hardware economics explain why a group would bother manufacturing inverters at all. On a 1 MW ground-mount plant costing ₹3.5 to 4.5 crore turnkey, inverters account for roughly 12% of capex, about ₹40 to 50 lakh (industry EPC benchmarks, 2026). At the residential end, a 5 kW grid-tie string inverter retails between ₹28,000 and ₹48,500 (IndiaMART listings, 2026). Owning this component means controlling quality, warranty experience, and a visible chunk of project cost.

If you are weighing inverter architecture for a residential job, our string inverter vs microinverter comparison covers when each design wins, independent of brand.

SurgePV: design and simulation software

SurgePV is the group's cloud platform for solar design, simulation, and proposals, with AI roof modelling that produces a usable layout in under 60 seconds (SurgePV, 2026). Its core outputs are shading analysis and bankable yield reports at P50, P75, and P90 confidence levels, plus a built-in assistant called Clara that helps designers iterate on layouts.

The P50/P75/P90 distinction is what separates a sales render from a bankable document. P50 means the plant beats that generation estimate in 50% of years. P90 means it beats it in 90% of years, which is the number lenders and serious C&I buyers look at. For a 100 kW factory rooftop in Pune selling against an MSEDCL tariff around ₹9.50 per unit, the difference between an optimistic and a bankable yield estimate can shift the promised payback by a full year (SERC tariff-based estimates, 2026).

Where does SurgePV sit relative to QuickEstimate? Different jobs. SurgePV answers "how much will this roof generate and what does the layout look like". QuickEstimate answers "how fast can this signed-off design become a branded, subsidy-correct proposal in the customer's WhatsApp". EPCs doing 3 to 10 kW residential volume usually need the second question answered daily and the first one occasionally. Teams bidding 100 kW and above need both. Our guide to solar proposal software compares the wider market on the sales side.

Heaven Designs: the engineering consultancy

Heaven Designs is a Surat-based solar design and engineering consultancy with 300+ EPC clients, 102+ MW of designed capacity, and a team of 50+ engineers serving projects in 15+ countries (Heaven Designs, 2026). Its service lines: pre-design, MW-scale detailed engineering, project management consultancy (PMC), civil and structural engineering, and permit design.

This is the least visible company in the group and the most instructive one. Most Indian EPCs under 100 kW average ticket size cannot justify a full-time structural engineer or an electrical design team. So they either skip engineering rigour, which shows up later as DISCOM objections and rework, or they outsource it. Heaven Designs exists for the second path: you send the site data, they return drawings, single-line diagrams, and permit-ready documentation your team executes against.

The model matters more in 2026 than it did in 2023 because compliance got stricter. ALMM (Approved List of Models and Manufacturers) List-II for solar cells took effect on 1 June 2026, extending domestic content rules down to the cell level (MNRE, 2026). DCR (Domestic Content Requirement) modules carried a 70 to 100% price premium over non-DCR modules in early 2026 (Shanghai Metals Market, 2026). Getting bill-of-material and layout decisions right the first time now has real money attached.

QuickEstimate: the CRM and proposal layer

QuickEstimate is the group's mobile-first solar CRM and proposal generator, used by 1,000+ Indian EPCs to send subsidy-ready branded PDF proposals in about 60 seconds from an Android phone. It auto-calculates the PM Surya Ghar subsidy by system size, delivers proposals over WhatsApp with read tracking, and keeps leads, pipeline stages, and follow-up reminders in one app. The free plan covers 10 proposals a month; Pro runs ₹6,999 per user per year with a 3-user minimum (see pricing).

Within the group structure, QuickEstimate is the connective tissue on the sales side. Design output from SurgePV, engineering from Heaven Designs, hardware from Qbits, and execution learnings from Heaven Green Energy all converge at one moment: the proposal the customer actually reads. That document decides whether the previous 4 stages turn into revenue or into a "we will think about it" on WhatsApp.

The product exists because the group watched its own reps lose deals to slower paperwork, the same pattern our solar CRM buyer's guide documents across the industry. If you are mapping where a CRM sits inside a solar company, our solar EPC CRM explainer breaks down the category.

How a lead moves through the stack

A single residential lead can pass through 4 of the 5 companies in about 10 days, and each handoff either preserves or destroys the work done before it. We call the operating principle The Clean Handoff Test: every stage must hand the next one a verified, reusable output, not a fresh start. If any stage forces the next team to redo the previous team's work from scratch, the handoff has failed and the customer pays for it in delay or price.

Here is a hypothetical walkthrough. A homeowner in Surat's Adajan area, with a ₹4,200 monthly DGVCL bill, enquires about rooftop solar in week one.

1. 1

   Lead capture and site survey (QuickEstimate)

   The rep logs the lead in under a minute, records roof photos and the sanctioned load at the site, and the lead enters a tracked pipeline instead of a personal WhatsApp chat.

2. 2

   Roof model and yield estimate (SurgePV)

   The designer models the roof in under 60 seconds, runs shading analysis on the water tank shadow, and sizes a 5 kW system with a P90 yield estimate for the proposal.

3. 3

   Proposal with subsidy math (QuickEstimate)

   A branded PDF with the ₹78,000 PM Surya Ghar CFA (Central Financial Assistance) pre-deducted reaches the customer's WhatsApp in 60 seconds, and the rep sees when it is opened. Slab details are in our PM Surya Ghar subsidy guide.

4. 4

   Hardware and installation (Qbits + Heaven Green Energy)

   The crew installs DCR modules with a Qbits 5 kW on-grid inverter. With a rooftop installed cost of ₹55,000 to 85,000 per kW (Vikram Solar, 2026), the 5 kW job quotes around ₹3 lakh gross, ₹2.22 lakh net of subsidy.

5. 5

   Commissioning, net metering, monitoring (Qbits app)

   After DISCOM inspection and bidirectional meter installation (see our net metering glossary entry), the customer tracks generation on the Qbits app and gets WhatsApp alerts if output drops.

Heaven Designs enters this chain whenever the project is bigger or the paperwork is harder: a 500 kW factory roof needing structural certification, or a ground-mount bid needing permit-ready drawings. The Clean Handoff Test applies there too: the consultancy hands the EPC construction-ready documents, not a design concept that needs reinterpretation.

What this means for an independent EPC

The direct answer: a vertically connected group raises the floor for everyone, but it does not close the market. PM Surya Ghar has solarised 40 lakh households as of May 2026 against a 1 crore target (Union Minister statement reported by SolarQuarter, 2026), so demand is nowhere near absorbed by any single player. Your realistic question is not "how do I fight a group" but "which of their vendors deserve my money, and which of their tactics deserve copying".

The tradeoff to be honest about: buying into connected vendors gives you smoother handoffs and one-throat-to-choke accountability, but it concentrates your business on one group's pricing, roadmap, and service quality. Buying best-of-breed from unrelated vendors keeps you independent but makes you the integration layer. Neither is wrong. Small EPCs under ₹50 lakh monthly GMV usually win more from speed than from vendor diversity.

How QuickEstimate fits

QuickEstimate is the piece of the group built for your sales floor, not for your customer. It assumes you already have leads, a design method, and hardware vendors; it fixes the gap between site survey and signed deal, where most Indian EPCs actually leak margin. The 60-second proposal with PM Surya Ghar subsidy pre-filled, WhatsApp delivery with read receipts, and a pipeline your owner can review in the morning covers the stages the rest of the stack cannot.

• Proposal Generator, 60-second branded PDF with PM Surya Ghar subsidy pre-filled.
• WhatsApp Follow-up, send the proposal and track reads inside the app.
• Pipeline Management, see which rep is following up and which lead is going cold.
• Lead Capture, pull enquiries from your website and campaigns into one queue.

If you want to see the workflow on your own deals, book a demo and bring one live lead to the call.

What to do this week

Three concrete actions, whether or not you ever buy from a Heaven Group company:

1. Run the Clean Handoff Test on your own sales process. Take your last 10 won deals and trace each one from lead to commissioning. Count how many times a number, drawing, or customer detail was re-entered by hand. Each re-entry is a handoff failure you can fix this month.
2. Audit your proposal speed. Time how long a 5 kW residential proposal with correct ₹78,000 subsidy math takes your team today, end to end. If it exceeds 30 minutes, test QuickEstimate's free plan on your next 10 proposals and compare.
3. Check your vendors against 2026 compliance. Confirm your module supplier's ALMM List-II position for the 1 June 2026 cell mandate and your inverter brand's BIS certification, before a DISCOM inspection does it for you.

Frequently asked questions

What are the 5 Heaven Group companies?

The 5 Heaven Group companies are Heaven Green Energy (residential and C&I EPC, 10,000+ installs since 2017), Qbits Energy (solar inverter manufacturing, 1 kW to 110 kW), SurgePV (cloud design and simulation software), Heaven Designs (engineering and permit design consultancy, 102+ MW designed), and QuickEstimate (mobile solar CRM and proposal software used by 1,000+ Indian EPCs). All 5 operate out of Surat, Gujarat.

Is the Heaven Group solar ecosystem a single bundled product?

No. Each company sells independently to the open market. You can use QuickEstimate with any inverter brand, buy Qbits inverters for a project designed in other software, or hire Heaven Designs for engineering while running your own installation crew. Only Heaven Green Energy sells turnkey solar to end customers; the other 4 sell tools and services to EPCs and developers.

What does Qbits Energy manufacture?

Qbits Energy manufactures on-grid and hybrid solar inverters from 1 kW residential to 110 kW industrial capacity. Published specifications include 98.8% efficiency, IP66 enclosures, an 8+4 year full replacement warranty, BIS IS 16221 and IEC 62109/62116 certification, and ISO 9001:2015 manufacturing. The company reports 100,000+ inverters installed across 25+ states through 500+ distributors, with under-48-hour service response (Qbits Energy, 2026).

What is the difference between SurgePV and QuickEstimate?

SurgePV is a design and simulation platform: AI roof modelling, shading analysis, and bankable P50/P75/P90 yield reports. QuickEstimate is a sales tool: CRM, 60-second branded proposals with PM Surya Ghar subsidy auto-calculated, and WhatsApp delivery with read tracking. SurgePV answers how much a roof will generate; QuickEstimate answers how fast that design becomes a signed deal.

How many installations has Heaven Green Energy completed?

Heaven Green Energy reports 10,000+ installations since its founding in 2017, an average 38-day installation timeline, and the #1 rating among residential EPCs on the PM Suryaghar Portal. It also runs C&I rooftop, ground-mount, and PM-KUSUM project lines and is an authorized Adani Solar distributor (Heaven Green Energy, 2026).

Do I need to use all 5 Heaven Group companies together?

No, and most users do not. A typical residential EPC uses 1 or 2: QuickEstimate for sales, and possibly Qbits inverters. Design-heavy C&I firms add SurgePV or Heaven Designs for specific projects. The companies share field knowledge but not customer lock-in, so you evaluate each product on its own pricing and fit, the same as any vendor.

Is QuickEstimate data safe and compliant for Indian EPCs?

QuickEstimate hosts data on AWS Mumbai, is compliant with the DPDP (Digital Personal Data Protection) Act, and operates as an Indian company headquartered in Surat, Gujarat. The app runs Android-first with an English, Hindi, and Gujarati interface. The free plan includes 10 proposals per month with no card required; Pro costs ₹6,999 per user per year with a 3-user minimum.