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 marketingHeat pumps coming soon

Book a demo

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 - sales - accounting - messaging - new features coming soon!

Connect your own WhatsApp Business number and message your customers from Energy Modeller - with their permission recorded, and opt-out handled for you.

★ 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 that turns 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

Coming soon

03 - Expand

Heat pump modelling

The same half-hourly, defensible modelling, coming to heat pumps - size the system, model running costs against real tariffs, and quote solar, battery and heat pump as one.

Heat-loss + flow-temperature sizing
Running costs on real half-hourly tariffs
Solar, battery + heat pump in one quote

★ 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 marketingHeat pumps coming soon

Book a demo

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 - sales - accounting - messaging - new features coming soon!

Connect your own WhatsApp Business number and message your customers from Energy Modeller - with their permission recorded, and opt-out handled for you.

★ 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 that turns 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

Coming soon

03 - Expand

Heat pump modelling

The same half-hourly, defensible modelling, coming to heat pumps - size the system, model running costs against real tariffs, and quote solar, battery and heat pump as one.

Heat-loss + flow-temperature sizing
Running costs on real half-hourly tariffs
Solar, battery + heat pump in one quote

★ 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