Buying Power, Renting Space, Committing Time

Part 11 of 16 · Behind the Buy Button

The printing room needs power and a place to stand

Mayan's machine will not run on a purchase order. eComm Inc needs electricity and space. Separate, unnamed energy and property counterparties supply those contracts. Mayan remains the machine and service supplier; buying the equipment does not settle the power or premises obligations.

Energy and leases are useful tests of any model that tries to make every purchase look like a box of books.

The long-term-contract cheat sheet

Arrangement	Relevant evidence	Distinction to preserve
Physical electricity purchase	Contract, delivery or metering and pricing	Capacity is not energy delivered
Financial energy agreement	Contract formula, reference price and eligible volume	Cash settlement is not physical electricity delivery
Environmental attributes	Required certificate or attribute records	A payment alone does not prove transfer
Property or equipment lease	Agreement, availability, payment schedule and modifications	Signing is not necessarily commencement

The EPA explains physical PPAs and, in an explicitly archived conceptual reference, financial PPAs. We use the distinction to understand the mechanism, not as current regulatory or deal-specific advice.

A financial settlement can change direction

Assume a simplified financial power agreement covers 1,000 megawatt-hours, or MWh, with a fixed price of $50 per MWh. The agreement uses a specified market reference. For this illustration:

Buyer payment = eligible MWh × (fixed price − reference price).

At a $40 reference price, eComm Inc pays 1,000 × ($50 − $40) = $10,000. At a $65 reference price, the result is −$15,000, meaning eComm Inc receives $15,000 under our assumed direction convention.

The formula excludes basis differences, volume adjustments, negative-price provisions, fees, collateral, tax and certificate terms. It is not a quotation of a real agreement. Its purpose is to show why a universal supplier-invoice-to-buyer-payment arrow is insufficient: the same formula can produce cash in either direction.

eComm Inc still needs a separate explanation of how its facilities obtain physical electricity. A financial settlement does not demonstrate that electricity from the referenced project flowed to this printing room.

Megawatts and megawatt-hours answer different questions

Megawatts, or MW, describe power or capacity. MWh describe energy over time. A simplified relationship is energy = average power × hours. A 2 MW facility operating at that average for ten hours uses 20 MWh. Nameplate capacity alone does not establish annual generation.

A dated public example helps: RWE's February 3, 2026 announcement describes a 110 MW Amazon agreement associated with Nordseecluster B and scheduled commercial operation in 2029. The announcement establishes a future arrangement, not delivery already occurring in 2026. The date matters as much as the number.

A lease also has more than one beginning

Assume eComm Inc signs a printing-facility lease in December, but the space becomes available for the agreed use in July. Signing establishes a contractual relationship. Availability is another event. The recognition analysis needs the actual terms and applicable accounting policy; a signature date alone cannot settle it.

A payment labeled “rent” might include a deposit, fixed rent, variable charges or reimbursements. These components need their own meanings. Renewal options and modifications can continue beyond the last invoice someone has marked paid.

For illustration only, three end-of-year payments of $10,000 discounted at 5% have a present value of:

$10,000 ÷ 1.05 + $10,000 ÷ 1.05² + $10,000 ÷ 1.05³ ≈ $27,232.48.

The undiscounted cash total is $30,000. The present value and cash total are two measurements of the same assumed stream, not separate liabilities to add. A real lease includes additional classification and measurement questions that this calculation intentionally leaves open.

What this changes in a capacity decision

Buying a machine, leasing equipment, renting space and buying a service can all help create capacity. Comparing only the current cash payment can hide future commitments and different risks.

eComm Inc's leaders need the obligations and the useful service on a common scope and time horizon. Mayan needs to understand whether the customer is buying an asset or paying for availability. An investor should resist calling one structure cheaper simply because less cash left the bank this quarter.

The practical question is: which promise continues after today's payment, and what evidence will show that it was fulfilled?

Continue the series

Previous: When the Project Changes, What Exactly Changed?. Next: Now eComm Inc Is the Seller. Return to the introduction and cheat sheet.

Evidence and method: public references were checked on October 18, 2026. The fictional scenarios, proposed controls and design conclusions are learning models, not claims about a real employer. Reported financial figures retain their stated measurement dates.