SundayGrids

What SundayGrids does

SundayGrids is a Bangalore-based digital solar platform founded in 2020 that enables residential consumers in India to reserve fractional capacity from commercial-scale community solar projects and convert generated power into on-bill credits that offset electricity bills across 70+ utility providers via Bharat BillPay integration. The platform's core technology is a credit-management system where 1 credit = ₹1 of bill offset, supported by real-time solar production monitoring, a Secured Generation guarantee covering 75% of forecasted output, and Digital Solar Service Agreements that allow flexible exit with refund. Customers include apartment dwellers, renters, and homeowners who lack rooftop access or prefer not to install panels, with projects hosted at residential societies and commercial buildings in Mumbai, Pune, Thane, Bengaluru, and Kalyan.

The business model is product-led and self-serve: users discover projects, reserve capacity, and link utility billers entirely online in approximately 3 minutes, paying a one-time reservation fee priced per kW reserved. Underlying community solar capacity is operated by partners including PeriUrja Energy and QuantE Renewables, with Tata Power Solar and Social Alpha as ecosystem allies, while Rainmatter Capital (Zerodha's incubator) is the sole disclosed seed investor since the January 2022 ₹2.8 crore round. In 2024 the company extended its credit redemption surface via a partnership with Ionage to cover EV charging at 3000+ stations nationwide, effectively repositioning the platform from a utility-offset tool to a broader renewable-energy wallet.

Cumulative operational metrics disclosed on the company website include 2,269.35 kW of digital solar installed, 40.66 lakh kWh of clean energy delivered, ₹2.29 crore in credits generated, ₹2.3 crore saved across 19.7K+ bills, and 36.59 lakh kg of CO₂ avoided. The company reports 1-10 employees and operates exclusively in India, with media positioning in Forbes India, Reuters, and The Better India as a category creator for "digital solar" in the Indian residential market.

Name

SundayGrids

Legal name

SundayGrids

Website

https://sundaygrids.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

SundayGrids is a Bangalore-based digital solar platform that lets Indian residential consumers reserve fractional capacity from community solar projects and offset electricity bills via on-bill credits redeemable across 70+ utilities and 3000+ EV charging stations.

Ownership category

akta.pro rank

Product category

Digital Solar / Community Solar Platform

NAICS

Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)

SIC

Electric Services (4911)

akta.pro primary industry

Community Solar Development & Subscription Management (EUAMAJAA)

akta.pro secondary industries

Solar Financing, Leasing & Ownership Platforms (Tax Equity, PPA, Securitization) (EUAMABAJ), Retail & Community PPAs (Community Solar/Shared Renewables) (EUAGADAC), Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)

Keywords

• Digital solar platform
• Community solar credits
• Fractional solar ownership
• Solar bill offset
• Rooftop solar alternative

Headquarters

HQ city

Bangalore

HQ country

India

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Solar Capacity Reservation Fees: One-time reservation fee based on capacity reserved, inclusive of all operational costs and maintenance. Users pay upfront to reserve solar capacity from community projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels9 records

Core offering

SundayGrids runs a Digital Solar Platform that enables residential users to reserve fractional solar capacity from commercial-scale community solar projects (typically 50-200 kW) and convert the resulting generation into bill credits redeemable against monthly power bills. The platform operates on a one-time capacity reservation fee model, integrates with Bharat BillPay to support 70+ Indian power providers, and extends credit usability to EV charging via the Ionage partnership.

Product overview

SundayGrids offers a unified Digital Solar Platform that enables residential users to reserve fractional solar capacity from community solar projects to earn credits for offsetting power bills. The core platform connects solar project hosts with end users, supported by Bharat BillPay integration for utility payments across 70+ Indian power providers. The EV Charging add-on module (via Ionage partnership) extends solar credits to cover electric vehicle charging at 3000+ stations nationwide. The ecosystem includes Community Solar Projects as the underlying energy infrastructure, a Solar Credits/Wallet for credit accumulation and management, and Digital Solar Service Agreements governing user reservations.

Differentiator

Problem solved

Functional benefit

Products and services

• Digital Solar Platform Core platform that lets residential users reserve fractional solar capacity from commercial-scale community solar projects and earn energy credits (1 credit = ₹1) to offset their monthly power bills, with real-time production monitoring and self-serve bill payment.
• EV Charging (Digital Solar for EVs) Integration with Ionage that enables SundayGrids users to redeem their accumulated solar credits to offset EV charging costs at 3000+ charging stations across India, supporting 2-wheelers, 3-wheelers and 4-wheelers including MG vehicles and multiple charging network operators.
• Community Solar Projects Commercial-scale solar installations (typically 50-200 kW) hosted at residential societies and commercial buildings in Bengaluru, Mumbai, Pune, Thane and Kalyan. Users reserve fractional capacity from these projects to earn energy credits, with Secured Generation guarantees and 15-year terms.

Quantifiable outcome

• ₹2.3 Crore saved across 19.7K+ bills
• +4 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• IONAGEcoreStrategic or Co-development Partner · 1 January 2024Partnership enables SundayGrids users to use accumulated solar credits for EV charging at 3000+ stations across India. Users link SundayGrids wallet with Ionage app to offset charging costs. Compatible with 2-wheelers, 3-wheelers, and 4-wheelers.
• PeriUrja EnergycoreStrategic or Co-development PartnerPeriUrja Energy is a solar developer managing multiple digital solar projects on the SundayGrids platform including Wenger 156 (Pune), Bloc 2 Leo, Leo Bloc 1 (Kalyan), and Libra 99 (Pune). They share service agreements with customers for power generation and trade.
• QuantE RenewablescoreStrategic or Co-development PartnerQuantE Renewables manages solar projects on the platform including Pavo 60 (Thane) and Aries 25 (Thane). They operate and maintain roof-mounted solar systems for community solar projects.
• Social AlphaminorGTM or Marketing PartnerSocial Alpha is a partner providing support and visibility for the platform
• Bharat BillPaycoreTechnology or IntegrationBharat BillPay is the bill payment infrastructure enabling SundayGrids users to pay power bills and redeem solar credits. Supports 70+ power providers including BESCOM, TPDDL, BSES, Adani, MSEDCL, TNEB, KSEB, Torrent Power, and Telangana.

Scale indicators11 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Arcadia Power: US-based clean energy data and community-solar platform that connects users to renewable energy projects and applies credits to utility bills — directly comparable to SundayGrids' digital-solar/bill-offset model.
• SunShare: US community solar developer and subscription manager offering shared solar subscriptions with on-bill credits — comparable in business model (community solar subscription) and customer-facing value proposition.

Regional players

• Freyr Energy: India-based rooftop solar provider for residential and small commercial customers; competes in the broader Indian distributed solar market and could be a future direct competitor as it adds community offerings.
• SolarSquare: India-focused residential rooftop solar company offering end-to-end solar installation and financing — comparable in targeting Indian residential solar customers with a different (hardware-led) model.
• Husk Power Systems: India/Africa distributed renewable energy operator that deploys community-scale solar and hybrid mini-grids — comparable in distributed/community solar asset development relevant to SundayGrids' project supply chain.
• Fourth Partner Energy: India's largest distributed solar C&I developer — comparable as a potential upstream project developer for SundayGrids and as a competitor in the broader Indian distributed-solar value chain.
• Oorja Development Solutions: India-based provider of decentralized solar energy services for rural and underserved customers — adjacent peer in Indian distributed/community solar with similar end-user accessibility focus.

Broad incumbents

• Sunrun: US residential solar incumbent with subscription/leasing offerings that also enable bill offsetting — comparable in residential solar subscription/credit mechanics, though a much larger, more established player.
• SunEdison Infrastructure: Indian solar developer (formerly SunEdison) with a broad portfolio of rooftop and utility-scale projects — a broad incumbent in Indian distributed solar with potential to enter community/virtual solar offerings.
• Tata Power Solar: Listed Indian solar EPC and rooftop-solar provider that is also a SundayGrids integration partner; a broad incumbent in Indian solar that could directly compete by offering community/virtual solar products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/playlist?list=PLdKTvOZsKvIsOkJYFGT_KjcGNvmSZg1Lp
• Instagraminstagram.com/reel/C3kduEvvZq1/?igsh=Y2NvMnp6dTh6NWdl
• Xx.com/sundaygrids
• Facebookfacebook.com/sundaygrids

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SundayGrids