Energy Modeller - the Sales AI for UK solar and battery installers. Integrates seamlessly with OpenSolar, Easy-PV and Reonic, with the most technical half-hourly battery modelling in the UK.

The Sales AI for UK solar & battery installers

Sell more solar and battery - with numbers you can defend.

Energy Modeller integrates seamlessly with the design software you already use and models every quote to the half-hour - so you recommend the right system, win the bigger battery, and grow the revenue in your business.

Most accurate modellingAI-run marketingPoint-of-sale finance

Book a demo See the maths

Sign-up coming soon Leave your work email and we will book you in.

integrates with OpenSolar - Easy-PV - Reonic - Solar PV + battery today - Heat pumps next

Integrates with the tools you already run

into Energy Modellerback to your tools

Design and proposal - CRM and sales - accounting - more added all the time.

★ What we do differently

Every recommendation is millions of half-hourly calculations.

Flat-rate tools multiply your annual usage by one unit rate and call it a quote. We simulate the system the way it physically runs - every half-hour, every tariff scenario, every year of its life. That depth is the differentiator.

Inside one recommendationcomputing

half-hourly dispatch calculations - per single recommendation

across every battery, inverter, panel, controller and tariff that fits the home

17,520

half-hour slots
x 25 years forward

tariff scenarios
import x export x strategy

every

battery - inverter
panel - controller

billions

of dispatch
calculations

In every single half-hour, we solve the physics

01Solar to load - meet demand directly from PV first

02Solar to battery - DC-coupled, clamped by capacity and charge rate

03Solar to export - capped by inverter AC and the DNO G98/G99 limit

04Battery arbitrage - discharge to load or export, SoC-reserve aware

05Force-charge - buy cheap in off-peak windows against a 48-hour forecast

06Track energy provenance - PV-origin vs grid-origin, so self-consumption is credited correctly

x 25 years forward

battery fade - panel degradation - tariff inflation, year by year

controller gate

only credit dispatch the customer's actual kit can execute

What flat-rate tools cannot do

48-hour forward optimiser

The battery charges and discharges against forecast prices, not a naive fixed rule - a 96-slot look-ahead.

Provenance-accurate savings

We know which electron came from your roof vs the grid, so self-consumption is not double-counted.

Hardware-honest

Fade curves, datasheet degradation and per-controller capability - the year-25 figure is real, not linear.

inputs: PVGIS irradiance - half-hourly smart-meter data (any supplier) - live wholesale pricing - nothing on screen is a guess

17,520 half-hourly slots is a real engine parameter - tariff and component counts are best-case - total is illustrative of the search space

★ The moat

The most accurate battery modelling in the UK.

A battery's savings come from when it charges and when it discharges against prices that move every 30 minutes. Flat-rate tools miss that entirely - and the whole value of the battery with it.

17,520

Half-hourly dispatch decisions, per simulated year

48 hr

Forward-looking optimiser horizon - a 96-slot look-ahead

Any

Supplier half-hourly smart-meter data, not one provider

100%

Every £ traceable to PVGIS, meter data or wholesale price

What flat-rate tools miss

The cheap off-peak window - where battery savings actually live
Battery fade (~2%/yr) - inflates lifetime savings by 25-40%
Panel output drop (~0.5%/yr) - the year-25 figure is fiction
Tariff inflation over 25 years - dwarfs the modelled saving
Controller capability - not every battery can run smart dispatch

What we model

Real half-hourly rates, from the customer's own smart meter
Per-manufacturer battery fade curves
Panel degradation from the module's actual datasheet
Year-by-year tariff inflation over the full horizon
Per-controller dispatch - only credit what the kit can do

One sales engine

It does not stop at the quote.

The modelling wins you the job - and the platform is built to run the marketing and finance that turn it into a signed deal.

Live

01 - Design

Most accurate modelling

Half-hourly battery dispatch, sized and ranked per household. The savings figure you can defend to any customer.

Integrates with OpenSolar, Easy-PV, Reonic
Your brands, your margins
Every £ sourced

Rolling out

02 - Sell

AI-run marketing

Speed-to-lead outreach, branded capture forms for your site, and multi-channel follow-up so no lead goes cold.

Respond in minutes, not hours
Your brand on every touch
A pipeline that keeps itself warm

On the roadmap

03 - Run

Point-of-sale finance

Show an affordable monthly figure right inside the quote, so cost stops killing deals and the monthly number does the selling.

Finance shown at the point of sale
An affordable monthly, not a scary total
Built to fit how you already close

★ Only we can do this

Prove your quote was honest. Year after year.

Em built the half-hourly model that won you the sale. Once smart-meter data flows in, she compares modelled vs actual every year - and sends your customer a personalised report showing they are saving what you promised. The best referral engine there is: a customer who can see it worked.

Year 1 performance reportIllustrative example

Hi - your system's first year, by the numbers:

Modelled saving£1,420

Actual saving£1,580

vs. our model+11%

You are outperforming the model by 11% - a sunny spring and good overnight battery use did it.

Meet Em

Your Sales AI - answering questions from the first click.

Em explains what the platform models, how the accuracy holds up, and how it fits your sales process - so a prospect can size it up before booking a call.

Em will not quote a subscription price - plans are not finalised yet - and it says so rather than guess. For pricing, it takes your details for the team.

Book a demo

See it quote a real system in minutes.

Join the UK installers getting early access to the most accurate solar and battery modelling there is.

Book a demo Log in

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Energy Modeller - the Sales AI for UK solar and battery installers. Integrates seamlessly with OpenSolar, Easy-PV and Reonic, with the most technical half-hourly battery modelling in the UK.

The Sales AI for UK solar & battery installers

Sell more solar and battery - with numbers you can defend.

Most accurate modellingAI-run marketingPoint-of-sale finance

Book a demo See the maths

Sign-up coming soon Leave your work email and we will book you in.

integrates with OpenSolar - Easy-PV - Reonic - Solar PV + battery today - Heat pumps next

Integrates with the tools you already run

into Energy Modellerback to your tools

Design and proposal - CRM and sales - accounting - more added all the time.

★ What we do differently

Every recommendation is millions of half-hourly calculations.

Inside one recommendationcomputing

half-hourly dispatch calculations - per single recommendation

across every battery, inverter, panel, controller and tariff that fits the home

17,520

half-hour slots
x 25 years forward

tariff scenarios
import x export x strategy

every

battery - inverter
panel - controller

billions

of dispatch
calculations

In every single half-hour, we solve the physics

01Solar to load - meet demand directly from PV first

02Solar to battery - DC-coupled, clamped by capacity and charge rate

03Solar to export - capped by inverter AC and the DNO G98/G99 limit

04Battery arbitrage - discharge to load or export, SoC-reserve aware

05Force-charge - buy cheap in off-peak windows against a 48-hour forecast

06Track energy provenance - PV-origin vs grid-origin, so self-consumption is credited correctly

x 25 years forward

battery fade - panel degradation - tariff inflation, year by year

controller gate

only credit dispatch the customer's actual kit can execute

What flat-rate tools cannot do

48-hour forward optimiser

The battery charges and discharges against forecast prices, not a naive fixed rule - a 96-slot look-ahead.

Provenance-accurate savings

We know which electron came from your roof vs the grid, so self-consumption is not double-counted.

Hardware-honest

Fade curves, datasheet degradation and per-controller capability - the year-25 figure is real, not linear.

inputs: PVGIS irradiance - half-hourly smart-meter data (any supplier) - live wholesale pricing - nothing on screen is a guess

17,520 half-hourly slots is a real engine parameter - tariff and component counts are best-case - total is illustrative of the search space

★ The moat

The most accurate battery modelling in the UK.

A battery's savings come from when it charges and when it discharges against prices that move every 30 minutes. Flat-rate tools miss that entirely - and the whole value of the battery with it.

17,520

Half-hourly dispatch decisions, per simulated year

48 hr

Forward-looking optimiser horizon - a 96-slot look-ahead

Any

Supplier half-hourly smart-meter data, not one provider

100%

Every £ traceable to PVGIS, meter data or wholesale price

What flat-rate tools miss

The cheap off-peak window - where battery savings actually live
Battery fade (~2%/yr) - inflates lifetime savings by 25-40%
Panel output drop (~0.5%/yr) - the year-25 figure is fiction
Tariff inflation over 25 years - dwarfs the modelled saving
Controller capability - not every battery can run smart dispatch

What we model

Real half-hourly rates, from the customer's own smart meter
Per-manufacturer battery fade curves
Panel degradation from the module's actual datasheet
Year-by-year tariff inflation over the full horizon
Per-controller dispatch - only credit what the kit can do

One sales engine

It does not stop at the quote.

The modelling wins you the job - and the platform is built to run the marketing and finance that turn it into a signed deal.

Live

01 - Design

Most accurate modelling

Half-hourly battery dispatch, sized and ranked per household. The savings figure you can defend to any customer.

Integrates with OpenSolar, Easy-PV, Reonic
Your brands, your margins
Every £ sourced

Rolling out

02 - Sell

AI-run marketing

Speed-to-lead outreach, branded capture forms for your site, and multi-channel follow-up so no lead goes cold.

Respond in minutes, not hours
Your brand on every touch
A pipeline that keeps itself warm

On the roadmap

03 - Run

Point-of-sale finance

Show an affordable monthly figure right inside the quote, so cost stops killing deals and the monthly number does the selling.

Finance shown at the point of sale
An affordable monthly, not a scary total
Built to fit how you already close

★ Only we can do this

Prove your quote was honest. Year after year.

Year 1 performance reportIllustrative example

Hi - your system's first year, by the numbers:

Modelled saving£1,420

Actual saving£1,580

vs. our model+11%

You are outperforming the model by 11% - a sunny spring and good overnight battery use did it.

Meet Em

Your Sales AI - answering questions from the first click.

Em explains what the platform models, how the accuracy holds up, and how it fits your sales process - so a prospect can size it up before booking a call.

Em will not quote a subscription price - plans are not finalised yet - and it says so rather than guess. For pricing, it takes your details for the team.

Book a demo

See it quote a real system in minutes.

Join the UK installers getting early access to the most accurate solar and battery modelling there is.

Book a demo Log in