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Place the right bid on every RFP

The developer side of EarthSync’s renewable-power marketplace. Find RFPs that fit your assets, price each bid on the buyer’s load and your target IRR, and compare its landed cost before you submit.

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Your bid · against the market

Win more bids at the return you need

C&I buyers publish their requirements through Marketplace; developers respond through ES Source. Model your asset against the buyer’s load to find the tariff needed for your target IRR. Then compare the landed price with the buyer’s grid cost and benchmarks for the same market, technology and contract term. Adjust the offer, check its feasibility and submit with the model attached.

OPEN RFPSTEEL PLANTLoad · 67 M units a yearRE target · 65%Contract · 10-year PPAOption A · DraftSolar + BESSOption B · DraftSolar + Wind + BESSOption C · DraftWind + BESSLanded cost ↓$/MWhRE share ↑% of demandShape cost ↓$/MWhCurtailment ↓% of generationBasis risk ↓$/MWh exposureBill saving ↑% of annual bill9%15%12%Normalised axes: lower costs and risks plot higher. Illustrative data.Bill savings assume remaining demand stays on grid at $72/MWh.CONTRACTREVIEWEDYour selected bid$58/MWh · bill −15%RE share 78% · target 65%1THE RFPThe buyer’s own load2YOUR BIDTest price against your return target3THE OPTIONSCost and fit on the buyer’s load4CONTRACTSubmit, negotiate and close

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Know your return and the buyer’s savings

Find the tariff needed to meet your target IRR, then test its landed cost against the buyer’s grid tariff. See when a deal works for both sides and when the terms need to change.

  • The buyer’s load

    Their 15-minute load from the RFP, not an annual guess.

  • Your target IRR

    The tariff needed to meet your return under the modelled assumptions.

  • The buyer’s view

    Your landed price and their savings against the grid.

  • Your model attached

    The simulation behind the bid travels with it.

Priced on the buyer’s load
ES Source · Bid for a steel plant RFP
Ready to submit

Your tariff

$54/MWh

Your IRR

13.2%

target 12.5% ✓

Below grid / MWh

19%

Landed price against comparable offers, $/MWh

Your bid, landed$58
Comparable low$60
Comparable high$62
Buyer’s grid tariff$72
Illustrative bid · benchmarks matched by market, technology and contract term

Every RFP that fits your assets

List your projects once. RFPs from C&I buyers come to you, matched on capacity, technology and market.

  • Asset listings

    Projects and capacity listed once, for every buyer.

  • Matched RFPs

    On capacity, technology and market.

  • Deadlines tracked

    Every open bid and its due date in one view.

  • Shortlist to contract

    Negotiation and contract in one flow.

List once, bid on every fit
A solar park under construction, with a crane setting the structures

1 place

to list your assets and answer every RFP

How it works

Test the return you need against the price the buyer will pay.Bids modelled in minutes

What you gain with ES Source

  • Finding RFPsDisconnected workflow: Word of mouth and emailEvery open RFP from listed buyers, matched to your assets
  • The buyer’s loadDisconnected workflow: Guessed from an annual figureThe buyer’s own 15-minute load, in the RFP
  • PricingDisconnected workflow: A tariff from a spreadsheet marginThe tariff needed for your target IRR, tested on the buyer’s load
  • Landed priceDisconnected workflow: Left to the buyer to work outYour landed price under the buyer’s market rules, before you submit
  • SubmissionDisconnected workflow: PDFs in every buyer’s formatOne format, with your model attached
  • Time to bidDisconnected workflow: WeeksMinutes
Works with
  • RFP invitations by email
  • Your ES Solve models
  • Excel and PDF exports
  • Committee-ready reports

Related reading

All resources
Guide · 8 min read

Understanding PPA structures in India: group captive, third-party open access, and rooftop captive explained

India's renewable energy procurement landscape offers three distinct contractual pathways, each with different risk profiles, regulatory constraints, and financial outcomes. Here's how to choose.

Read the article
Case study · 7 min read

Underwriting a captive solar+BESS asset for a financier

A lender needed a defensible view of project cash flows before committing capital. How 15-minute simulation and Monte Carlo analysis replaced a single-point pro-forma with a base case a credit committee could actually interrogate.

Read the case study
Guide · 8 min read

Sizing Solar + BESS: why the answer lives in sub-hourly data

Two systems with identical annual generation can deliver very different economics. The difference hides in the 35,040 fifteen-minute blocks a year that kWh totals average away, and it's why battery sizing is an optimisation problem, not a rule of thumb.

Read the article

Ready to optimise your energy decisions?

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10 GW+

Projects simulated

1 GW+

Assets under operation

$1Bn+

In energy decisions modelled