# How do billing platform vendors sell to energy retailers?

> **The short answer:** Billing, meter data and customer platform vendors sell to competitive energy retailers by timing deals to regulatory milestones, tariff changes and supplier mergers. In GB, Market-wide Half-Hourly Settlement (MHHS) milestones decide when the 17 domestic suppliers buy, and most deals are now add-ons or rescue projects. By our estimate, a GB supplier deal takes 2–14 months, about 6 months.

- Page: https://panelhop.com/industries/energy/energy-retail-billing-cis
- Section: Home › Industries › Energy › Billing and customer platforms for energy retailers
- Updated 5 October 2026 · Based on Panelhop research, October 2026
- Written for: Vendors of billing and customer platforms selling to energy companies
- Publisher: Panelhop (https://panelhop.com/)

**Your MHHS pitch reaches suppliers that already chose.** You sell billing, meter data, tariff or customer platforms to competitive energy suppliers. GB domestic supply is down to 17 suppliers, and MHHS has turned most full platform deals into rescue or add-on work. The next window, time-of-use and data products for after M15, can be sold now.

- Full platform deal (EU tenders): €80–600k a year (Illustrative)
- Sales cycle (GB supplier): 2–14 months, about 6 (Illustrative)
- Buying group: 6–12 people (Illustrative)

## Billing and customer platforms for energy retailers · How a deal really moves

**GB’s 17 domestic suppliers buy on MHHS dates. The shortlist forms early, and migrations stall your references.** (Illustrative)

With Panelhop: The same deal, timed to each milestone. Each supplier’s milestone status and buying group in your CRM.

One GB supplier, 6–12 people and an estimated 2–14 months, about 6 months, from first signal to signature.

What opens a deal:

- **MHHS M14 and M15 milestones** (Deadline · GB)
- **Billing platform exit** (Technology)
- **Supplier merger** (Consolidation)
- **German tariff rule changes** (Regulation · DE)
- **Ransomware hits billing** (Security)

The buyer: **An energy supplier**. GB supplier or EU retailer. 17 active GB domestic suppliers.

Who decides:

| Seat | What worries them | Can veto |
|---|---|---|
| COO or CEO | Billing backlogs and complaints during migration. | Yes |
| Board or investors | An overrun or a cyber incident on their agenda. | Yes |
| Finance | Implementation fees that swallow the budget. | Yes |
| Procurement | Having to justify a single source. | Yes |
| IT and architecture | Losing control to an outsourced platform. | Yes |
| Information security | A breach of customer data through a provider. | Yes |
| Head of billing | Being blamed for a missed MHHS milestone. | No |
| MHHS programme lead | A missed M15 that blocks new customer registrations. | No |

How the deal moves:

| Stage | Typical time | Where it stalls today | With Panelhop | Service |
|---|---|---|---|---|
| Targeting | 1–3 months | Selling MHHS to suppliers that already chose | Baseline: suppliers in the CRM, their tier and their milestone status | Panel Check (GTM audit · 2–3 weeks): https://panelhop.com/services#audit |
| Long list | 1–3 months | – | – | – |
| RFP | 1–4 months | Rivals with MHHS proof make the shortlist | A qualification model on fit, engagement, milestones and the incumbent | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Scripted demos | 3–8 weeks | – | – | – |
| Security review | 1–3 months | Security starts after billing has chosen | Security pack requested at long list, with review status on the deal | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Commercial close | 1–3 months | – | – | – |
| Migration | – | Your reference is still mid-migration | A handoff document from the deal, so migration inherits scope and dates | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Expansion | – | – | – | – |

With Panelhop across the deal: Signal Desk · weekly on what opens a deal (in-market accounts, scored and mapped); Panel Check on the buyer (coverage baselined); Panel Ops · monthly from the last stage back to the next trigger (scores and plays tuned against the baseline).

*Source: Stages, seats, triggers and stalls from Panelhop research, October 2026; [Ofgem](https://www.ofgem.gov.uk/news-and-insight/data/data-portal/retail-market-indicators); the services as described on the Services page.*
*Note: Durations, panel sizes and cycle lengths are Panelhop estimates from our research, not measurements.*

## At a glance

| Fact | Value |
|---|---|
| Full platform deal (EU tenders) | €80–600k a year (Illustrative) |
| Sales cycle (GB supplier) | 2–14 months, about 6 (Illustrative) |
| Buying group | 6–12 people (Illustrative) |
| GB deals now | Mostly add-on or rescue modules under MHHS |

*Source: Panelhop research, October 2026.*
*Note: Values marked Illustrative are Panelhop estimates from our research, not measurements.*

## Where do sales pipelines leak for energy billing vendors?

**Billing deals leak at the deadline and after go-live.**

Energy billing vendors’ sales pipelines leak when the MHHS compliance pitch outlives the deadline, and again after go-live. In our analysis of vendor websites, none of the 20 vendors in our energy research panel showed migration or deadline proof, such as suppliers taken through MHHS milestones. We flagged single-threaded deals as a likely bottleneck for 17 of the 20 vendors.

**Exhibit 1: Where the pipeline leaks: 5 points across 8 stages.**

1. **Your campaigns sell MHHS readiness after the window** (stage: Targeting). What you see: GB campaigns still sell MHHS readiness to suppliers that have moved on. Why it happens: Campaigns run on a flat calendar instead of each supplier’s milestone status.
2. **A rival’s exit becomes a tender you never saw** (stage: Targeting). What you see: A rival’s customers re-tender before you know they’re looking. Why it happens: No alerts on vendor sales, product cuts or insolvencies, and no list of the suppliers affected.
3. **RFPs go to rivals that show MHHS milestone proof** (stage: RFP). What you see: RFPs go to rivals that can show suppliers already through MHHS milestones. Why it happens: No migration or milestone proof packaged for the RFP, and few named references.
4. **Your newest customer is still migrating at the next RFP** (stage: Migration). What you see: Signed customers are still migrating when the next RFP asks for a live reference. Why it happens: Migration effort underestimated in the sale, and no handover from onboarding to expansion.
5. **Customers buy time-of-use modules from your rivals** (stage: Expansion). What you see: Customers buy time-of-use and flexibility modules from competitors. Why it happens: No portfolio, usage or regulatory triggers feeding expansion plays.

*Source: Panelhop research, October 2026.*

## What makes an energy supplier change or extend its billing platform?

**Milestones, mergers and platform exits open the window.**

MHHS milestones, platform exits, supplier mergers, tariff rule changes and incidents open billing windows at energy suppliers. Each has a date or a public trace you can track per account.

**Exhibit 2: The 5 events that open or close the window for a deal.** (Illustrative)

- **MHHS milestones** (Regulation). What happens: MHHS sets M14 (28 October 2026) as the qualification deadline for GB suppliers and M15 (7 May 2027) as the deadline to migrate their meters (MPANs), with limits on new registrations for suppliers that miss them. Where to spot it: Elexon’s MHHS programme pages and suppliers’ milestone announcements. Window: Full platform deals are now mostly rescue or add-on work; time-of-use and data products for after M15 can be sold now.
- **Incumbent platform exit** (Technology). What happens: A billing platform is discontinued, sold or reaches the end of maintenance, and its customers must re-tender. Where to spot it: Trade press, tender portals and keyword alerts on billing tenders. Window: Typically 6–24 months from announcement to tender, by our estimate.
- **Supplier merger** (Consolidation). What happens: A supplier merger removes a logo and forces a choice between the merging suppliers’ billing platforms. Where to spot it: Deal announcements and Ofgem’s retail market data. Window: The platform decision follows completion, often within months.
- **German tariff rule changes** (Regulation). What happens: New rules in Germany, such as the dynamic tariff duty and section 14a network charges, force changes to billing. Where to spot it: Bundesnetzagentur rulings and trade press. Window: Add-ons sell first; replacements follow where the old system can’t keep up.
- **Cyber incident** (Security). What happens: A ransomware attack takes down billing or the customer portal, often through an IT provider. Where to spot it: Company statements and IT security press. Window: Security work starts at once; platform decisions follow within months.

*Source: Panelhop research, October 2026; [Ofgem](https://www.ofgem.gov.uk/sites/default/files/2026-05/decision-to-approve-BSC-P487-Incentive-on-BSC-Supplier-Parties-to-meet-the-M15-MHHS-Milestone.pdf).*
*Note: Timings are Panelhop estimates from our research, not measurements.*

## Who signs off a billing platform purchase at an energy supplier?

**The COO sponsors the deal. Most other seats can veto.**

At a GB or European energy supplier, the COO or CEO sponsors a billing platform purchase and the board or investors approve it. IT, security, procurement and finance can each stop it, and the MHHS or regulatory lead tests every milestone claim.

**Exhibit 3: At a GB or European energy supplier replacing or extending its billing platform, 6–12 people sit on the panel and 6 seats can stop the deal.** (Illustrative)

At a GB or European energy supplier replacing or extending its billing platform: 6–12 people.

| Seat | Typical titles | Cares about | Worries about | Can veto |
|---|---|---|---|---|
| COO or CEO | COO, CEO, Managing Director | Hitting M15 and the next tariff launch without billing backlogs. | Billing backlogs and complaints during migration. | Yes |
| Head of billing or customer operations | Head of Billing, Head of Customer Operations | Data migration quality and a clean parallel run. | Being blamed for a missed MHHS milestone. | No |
| MHHS programme or regulatory lead | MHHS Programme Lead, Regulatory Affairs Manager | Proof the platform meets settlement obligations. | A missed M15 that blocks new customer registrations. | No |
| IT and architecture | CIO, IT Director, Enterprise Architect | Market communication and settlement interfaces, and a clear exit. | Losing control to an outsourced platform. | Yes |
| Information security | CISO, Information Security Manager | ISO 27001 or SOC 2 evidence, and NIS2 supplier clauses in EU markets. | A breach of customer data through a software provider. | Yes |
| Procurement | Procurement Manager, Category Manager IT | Comparable offers and a selection they can defend. | Having to justify a single source. | Yes |
| Finance | CFO, Head of Finance | Total cost over the term, licence and implementation together. | Implementation fees that swallow the budget. | Yes |
| Board or investors | Board, Investment committee | Total investment, delivery risk and the next regulatory date. | An overrun or a cyber incident that lands on their agenda. | Yes |

*Source: Panelhop research, October 2026.*
*Note: The panel size is a Panelhop estimate from our research, not a measurement.*

## What do billing platform vendors sell to energy retailers?

**You sell the system every customer bill depends on.**

Billing and customer platform vendors sell licensed electricity and gas suppliers the systems that bill every customer and settle every meter. The GB list is short: 17 active domestic suppliers in March 2026. Stadtwerke replacing their whole billing and CIS platform are covered on our utilities industry page.

**What vendors of this type sell**

- Core billing and customer information systems (CIS) for competitive electricity and gas supply
- Supplier-side settlement data and meter data services under MHHS
- Customer portals, CRM and contact-centre tools for suppliers
- Time-of-use and flexibility products built on half-hourly data
- Pricing, billing and market communication for dynamic tariffs and section 14a devices in Germany
- Billing operations run by the vendor alongside the platform

**Which energy companies buy it**

- GB domestic and business energy suppliers
- Competitive suppliers in EU markets, including Stadtwerke supply arms launching dynamic tariffs
- Suppliers entering a new country or commodity

## How does an energy supplier buy a new billing platform?

**A billing deal runs on the regulator’s calendar.**

A GB supplier usually buys billing, meter data or settlement modules through a long list, an RFP, scripted demos and a security review, timed to MHHS milestones. By our estimate, these deals take 2–14 months, about 6 months. Stages overlap, and add-on or rescue deals often skip the long list and RFP.

**Exhibit 4: Stage by stage: what you do, what the energy company does, and what changes at the 4 stages where deals stall.** (Illustrative)

| Stage | Typical time | What you do | What the energy company does | Today | With Panelhop | Service |
|---|---|---|---|---|---|---|
| Targeting | 1–3 months | Runs one campaign calendar for every supplier. | A milestone, a merger, a tariff launch or a platform exit exposes a gap. | One campaign calendar for every supplier. Stalls: Milestone status not tracked. Few vendors track which suppliers have qualified or migrated, so campaigns reach suppliers that already chose a partner. | A baseline of how many target suppliers the CRM holds and tiers, and whether it records their milestone status and buying group. | Panel Check (GTM audit · 2–3 weeks): https://panelhop.com/services#audit |
| Long list | 1–3 months | Hears of the selection when the RFP arrives. | Builds requirements and a long list, sometimes with an adviser. | RFPs found when they arrive. | Milestone slips, platform exits, mergers and billing hiring flagged weekly, with the buying group mapped. | Signal Desk (In-market accounts, weekly): https://panelhop.com/services#signal |
| RFP | 5 weeks to 4 months | Answers a structured RFP, often under milestone pressure. | Scores the responses and cuts to a shortlist. | Every RFP answered. Stalls: The shortlist was set earlier. Track record and milestone proof decide who is invited, so a vendor the supplier doesn’t know rarely makes the shortlist. | A written qualification model, fit plus engagement, that includes each supplier’s milestone status and incumbent. | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Scripted demos | 3–8 weeks | Runs the supplier’s billing, settlement and tariff scenarios. | Billing, operations and IT score each demo. | Billing engaged, IT and security unmapped. | A role map per tier, with IT, security and the MHHS lead tracked per account. | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Security review | 1–3 months | Sends certificates, the data processing agreement and sub-processor terms. | Security checks ISO 27001 or SOC 2 evidence, and NIS2 clauses in EU markets. | Security questions answered after the business has chosen. Stalls: Security reviewed after the choice. Vendor risk review starts once billing has chosen, and a vendor without a security pack waits for weeks. | Stage exit criteria that request your security pack at the long list stage and track review status on the deal. | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Commercial close | 1–3 months | Negotiates licence, implementation and migration terms. | Finance weighs the total cost, and the board or investors approve larger contracts. | Close dates set without the board calendar. | Forecast accuracy reported monthly against the baseline, with the deal risk score and slipped close dates reviewed against board and investor approvals. | Panel Ops (We run it monthly): https://panelhop.com/services#run |
| Migration | – | Migrates customers, contracts and meter data. | Runs both systems in parallel until the first bills are right. | The scope promised in the RFP lives in a folder. Stalls: References stuck in migration. Long migrations push services revenue out and leave the next RFP without a live, citable reference. | A handoff document from the deal, so migration inherits the scope and dates as sold. | Leak Fix (We build the fixes): https://panelhop.com/services#build |
| Expansion | – | Sells modules through the account manager. | Adds time-of-use tariffs, flexibility products or new markets after go-live. | Modules sold when a customer asks. | Expansion triggers at customers, such as M15 completion or a new tariff, flagged as signals and reviewed in the weekly signal review. | Panel Ops (We run it monthly): https://panelhop.com/services#run |

*Source: Panelhop research, October 2026.*
*Note: Typical times are Panelhop estimates from our research, not measurements.*

## How does Panelhop change an energy billing vendor’s pipeline?

**Time every play to each supplier’s milestones.**

Panelhop flags milestone slips, mergers and platform exits weekly and maps each supplier’s buying group, so every play fits where the supplier stands. A Panel Check (GTM audit · 2–3 weeks) baselines the pipeline from your CRM first.

What we baseline and report:

1. Target suppliers held and tiered with their milestone status in the CRM, against the baseline
2. Accounts reached before their RFP is issued
3. Roles engaged per open opportunity, with IT and security included

## What other vendors sell to energy companies?

**Other vendor types in energy.**

The same energy companies buy from these vendor types too, through different panels and pipelines.

- [Renewable and storage portfolio platforms](https://panelhop.com/industries/energy/renewable-storage-portfolio-platforms): SCADA, asset performance, portfolio software and storage optimisation for owners of wind, solar and battery storage portfolios.
- [ETRM/CTRM for energy traders](https://panelhop.com/industries/energy/etrm-ctrm-trade-reporting): ETRM/CTRM platforms plus REMIT and EMIR trade reporting for energy traders, producers’ marketing arms and supplier procurement desks.
- [Methane measurement and MRV](https://panelhop.com/industries/energy/methane-emissions-measurement): Methane sensors, aerial and drone surveys, emissions models and MRV software for oil and gas operators facing OGMP and EU rules.
- [Charge point management and payment back ends (CPMS)](https://panelhop.com/industries/energy/cpms-charging-backends): Charge point management, payment and roaming back ends for charge point operators, from specialist networks to oil majors’ charging arms.

[The whole energy market: segments, panel and pipeline →](https://panelhop.com/industries/energy/)

## What do terms like “MHHS” and “MPAN” mean?

**The words your buyers use, defined.**

Plain definitions of the terms that come up when you sell billing and customer platforms to energy companies.

- **MHHS**: Market-wide Half-Hourly Settlement: the GB programme that settles every electricity meter on half-hourly data. Suppliers must qualify by milestone M14 and migrate their meters by M15.
- **MPAN**: Meter Point Administration Number: the unique reference for an electricity supply point in GB. Suppliers migrate their MPANs to half-hourly settlement under MHHS.
- **P487**: The Balancing and Settlement Code change Ofgem approved in 2026: a supplier that misses M15 cannot register new customers until it completes MHHS migration, unless granted an exemption.
- **Time-of-use tariff**: A tariff with different prices at different times of day. Half-hourly settlement under MHHS makes it practical for GB suppliers to offer one at scale.
- **Dynamic tariff**: An electricity tariff whose price follows the wholesale market, often hour by hour. German suppliers must offer one, so their billing systems must be able to price it.
- **Section 14a**: The German rule for controllable devices such as heat pumps and wallboxes: network operators may limit their power in return for reduced network charges, which supplier bills must reflect.

## What do vendors of billing and customer platforms ask about selling to energy companies?

**Answers before your next energy company deal.**

### How long does it take to sell billing software to a UK energy supplier?

Selling billing, meter data or settlement software to a GB energy supplier typically takes 2–14 months, about 6 months, by our estimate. MHHS milestones compress decisions, and most new deals now extend a platform or rescue a migration. A full platform replacement takes longer.

### How do you find GB energy suppliers that are behind on MHHS?

Elexon’s MHHS programme pages and suppliers’ own milestone announcements show which GB energy suppliers are behind on MHHS qualification or migration. A supplier that misses the M14 qualification deadline of 28 October 2026 cannot register new metering points (MPANs) until it qualifies. Under P487, a supplier that misses M15 on 7 May 2027 faces a similar restriction on new customers unless exempted. Late qualifiers are urgent, short-cycle buyers.

### How many energy suppliers are left in the UK?

Great Britain had 17 active domestic energy suppliers in March 2026, after years of failures and mergers, and Northern Ireland has its own market. For billing, meter data and customer platform vendors, GB domestic supply is a short list you can name in full. Each supplier’s MHHS milestone status and platform contract matter more than volume, and every supplier merger forces a choice between billing platforms.

### What happens to MHHS vendors after migration ends on 7 May 2027?

After MHHS migration ends on 7 May 2027, demand from GB energy suppliers shifts from compliance to products. Half-hourly data opens time-of-use tariffs, flexibility products and settlement analytics, so billing, CIS and meter data vendors should move from milestone rescue to expansion plays. Each supplier’s milestone status shows when to switch.

### How do you sell billing software to UK energy suppliers before they issue an RFP?

Billing vendors reach GB energy suppliers before an RFP by tracking each supplier’s MHHS milestone status, platform contract and merger news, and by mapping the COO, the head of billing, IT and the MHHS lead early. GB domestic supply had 17 active suppliers in March 2026, so named-account coverage beats campaign volume. Track record and milestone proof decide who is invited to bid.

### Who can veto a billing platform purchase at an energy supplier?

At a GB or European energy supplier, IT, information security, procurement and finance can each veto a billing platform purchase. The COO or CEO usually sponsors the purchase, the board or investors approve it and the head of billing or customer operations champions the deal. The MHHS or regulatory lead tests every milestone claim. By our estimate the buying group has 6–12 people.

## Sources

**Where the numbers come from.**

Sourced figures link to their source below. Figures marked Illustrative, and figures given as estimates, are inferred from Panelhop research. Vendors appear only as types, never by name.

1. [Ofgem, Retail market indicators (2026)](https://www.ofgem.gov.uk/news-and-insight/data/data-portal/retail-market-indicators)
2. [Ofgem, Decision to approve BSC P487: Incentive on BSC Supplier Parties to meet the M15 MHHS Milestone (2026)](https://www.ofgem.gov.uk/sites/default/files/2026-05/decision-to-approve-BSC-P487-Incentive-on-BSC-Supplier-Parties-to-meet-the-M15-MHHS-Milestone.pdf)
3. [Panelhop, Services (2026)](https://panelhop.com/services.html)
- Panelhop research, October 2026: our analysis of the vendors, buying panels, pipelines and triggers for billing and customer platforms in energy, from public sources. Vendor names are not published.

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