Case 090Bond issuance and executionCore
A wind power company can price a green bond 8 basis points tighter than a plain bond, but the label costs Rs 40 lakh a year in verification and reporting on a Rs 500 crore issue. Does the green label save money?
1The situation
Vayunandan Wind is raising Rs 500 crore for seven years to build a new wind farm. The syndicate desk believes a green bond, with proceeds ring-fenced for the project, would price about 8 basis points below a plain bond, because some investors have mandates to buy green paper.
Keeping the label costs money: an external review of the green framework before issue, about Rs 25 lakh once, and annual verification and impact reporting of about Rs 40 lakh a year for the life of the bond. Use 8% to discount costs and savings. The disclosure rules for green bonds are set by the regulator and the framework the issuer adopts; confirm the current requirements before relying on these cost estimates.
2Your task
Does the green label save Vayunandan money, at what size or greenium would it, and is money the only reason to do it?
Quick check
How much does 8 basis points save each year on Rs 500 crore?
Worked solution
Try it on paper, then open one step at a time.
30-second answerThe answer to give first
Not on this issue: the 8 basis point saving, Rs 40 lakh a year, exactly matches the annual reporting cost, and the Rs 25 lakh upfront review tips it negative. Over seven years the label costs about Rs 25 lakh more than it saves in today's money. It breaks even at a greenium of about 9.0 basis points or an issue of about Rs 560 crore, because the cost is fixed and the saving grows with size.
Step 1How do you turn basis points into rupees?
One basis point is 0.01%. On Rs 500 crore, that is Rs 5 lakh a year. So an 8 basis point greeniumThe lower yield a green bond pays compared with an otherwise identical plain bond from the same issuer, because some investors want green assets. saves Rs 40 lakh a year, the same as the annual reporting bill. It is like a shop discount that saves you exactly the bus fare to get there: the discount is real, but you are not better off. Add the upfront review, Rs 25 lakh spread over seven years at 8% is about Rs 4.8 lakh a year, and the label costs Rs 44.8 lakh a year against a saving of Rs 40 lakh.
| Over seven years, today's money | Rs lakh |
|---|---|
| Coupon saved, Rs 40 lakh a year | 208.3 |
| Annual verification and reporting | (208.3) |
| Upfront framework review | (25.0) |
| Net cost of the label | (25.0) |
Step 2When would the label pay?
Two levers. A bigger greenium: at about 9.0 basis points the saving covers all the costs. Or a bigger issue: because verification and reporting cost roughly the same for Rs 250 crore as for Rs 1,000 crore, the label pays above about Rs 560 crore at an 8 basis point greenium. At Rs 1,000 crore the saving is Rs 80 lakh a year against Rs 44.8 lakh of cost. An issuer that plans several green issues also spreads one framework review across all of them.
Step 3Is money the only reason to issue green?
No, and a banker should say so. A green label can bring in investors who would not otherwise buy Vayunandan at all, which means a larger order book, a tighter final price than the desk's estimate, and a wider base of buyers for the next issue. Those benefits are real but hard to count, so the honest pitch is: the label roughly breaks even on price alone, and the case rests on the investor base. The limitation is the greenium itself: it is an estimate on the day of pricing, it varies with how many green-mandated investors are active, and it can shrink in secondary trading. A wind farm is also a natural green asset, so the reputational risk of the label is low, which is not true for every issuer.
Where candidates lose it
The common slip is converting basis points wrongly: 8 basis points on Rs 500 crore is Rs 40 lakh a year, not Rs 4 crore. Get that wrong and the label looks like a large saving.
The second is forgetting the one-time framework review. With the annual costs exactly matching the saving, that upfront Rs 25 lakh is what decides the answer on this issue size.
What the interviewer asks next
- What greenium would Vayunandan need on a Rs 300 crore issue to break even?
- Why might the greenium be larger in a new issue than in secondary trading?
- What happens to the bond if the proceeds are later found to have funded a non-green project?
Company names and figures are illustrative.