Question 1

What are Half Hourly Data (HHD) and P50/P90 estimates, and why do I need to provide them?

Accepted Answer

HHD is a record of a site's electricity generation, measured and recorded every 30 minutes. Electricity is traded in half hour 'chunks' known as Settlement Periods, and each day is divided into 48 periods. This data helps to precisely track how much energy is generated and when. P estimates, such as P50 and P90, are the probability figures of a site's generation. P50 represents the predicted average level of generation during half of the site's lifetime, while P90 refers to the level of anticipated generation for 90% of the site's lifetime. Suppliers need HHD or P estimates to forecast what a site will generate on an annual basis and is used to determine pricing and delivery terms. Suppliers base power prices on HHD for 12 months, and having this information increases the chances of securing offers. For new sites, P50 and P90 estimates are required as they are unlikely to have HHD.

Question 2

What are the benefits of a PPA?

Accepted Answer

A PPA is the key revenue document for any renewable generation project. PPA gives the stability of maintaining a discount-to-market price at all times, while still allowing to profit from energy price peaks. A PPA can also be used for medium and short-term power sales, where parties require a more bespoke arrangement than a simple sale of power under an energy trading contract.

Question 3

What are Renewable Energy Guarantees of Origin (REGOs)?

Accepted Answer

REGOs are used by energy suppliers to prove to final customers the share or quantity of energy from renewable sources in an energy supplier's overall energy mix and as evidence to support the marketing of renewable or low carbon tariffs. OFGEM issues REGOs as electronic certificates. They are generated at a rate of 1 REGO per megawatt hour (MW/h).

Question 4

Where can I find my export MPAN?

Accepted Answer

Your export MPAN can be found in your Half-Hourly Data (HDD) and billing statements. If you do not have these, we recommend that you reach out to your previous supplier as it is mandatory for them to provide you with this information.

Question 5

How will I know when my target price is hit?

Accepted Answer

Every morning our platform runs a report checking your target price against the market. If your quote either exceeds the going market rate or calculates a 5% probability of it, an alert is sent to our sales team who will reach out to you for further discussion.

Question 6

Can I amend my tender after it's been activated?

Accepted Answer

Yes. You can withdraw your tender at any time to add, update, or remove any information on it, including dates, embedded benefits, and any additional notes.

Question 7

How far in advance can I agree on a short-term PPA?

Accepted Answer

You can contract your renewable asset as long as prices are available in the market for your entire contract duration. Depending on the utility we speak to, this could be anywhere between 24 to 60 months from the present day. We have tenders already tracking the market with start dates 3 years from now.

Question 8

What's the difference between installed capacity and expected generation?

Accepted Answer

Installed capacity is the maximum intended electrical output of the generating unit, which will usually be the same as the nameplate capacity. Installed capacity represents the maximum amount of electrical power that a facility can produce under ideal conditions, often expressed in megawatts (MW) or gigawatts (GW). Expected generation represents the actual amount of electricity that a facility is anticipated to produce over a set period of time. It takes into account operational efficiency, weather conditions, and maintenance schedules.

Question 9

What's the difference between a fixed annual and a fixed seasonal price?

Accepted Answer

A fixed price refers to the agreed upon price for every kilowatt hour (kW/h) or megawatt hour (MW/h) that cannot be changed at any point in the contract. If a generator and supplier agree on £100 for every 1 MW/h, then that will be the fixed price for the duration of the PPA. A fixed annual price refers to the set price offered by a supplier for the entire contract period. If a 12-month PPA is signed, with both parties agreeing on £100 every 1 MW/h, then that is the fixed annual price for the duration of the contract. A fixed seasonal price is the supplier's set rate for either the Summer (1st April to 30th September) or Winter (1st October to 31st March) season. Depending on the market conditions during each season, the fixed seasonal price could boost revenue or yield lower profits compared to a fixed annual contract.

Question 10

What is a Power Purchase Agreement (PPA)?

Accepted Answer

A PPA is a contract between an electricity generator (generator) and the party who is purchasing the power (offtaker or supplier) which incorporates the commercial terms for the sale and purchase of electricity, covering key details including the quantity of electricity the supplier intends to buy, the duration of the agreement, and the fixed price.

Frequently Asked Questions