Solar + Battery sizingBuilt for the NEMNo commercial bias
The right system size.Numbers that don't lie.
Every number built on your customer's actual bill and tariff. Not a flat rate. Not a rule of thumb. Not a blended ROI you can't defend.
The investment either stacks up — or it doesn't.
Early access only · For solar and battery installers in the NEM
What's inside
Features built for the analysis. Not the proposal.
Accurate sizing your customers can trust.
The customer's actual bill is the starting point. Not a generic assumption.
AI bill parsing
Upload the customer's electricity bill. ENRG ENGINE extracts tariff rate, usage, feed-in tariff, peak/off-peak windows, supply charge, and retailer automatically — and feeds it directly into the sizing engine. No manual re-entry.
Smart meter interval data
Upload CSV interval data direct from their retailer. Battery sizing optimised against their actual half-hourly consumption — not a generic load profile.
Retailer tariff library
AGL, Origin, Energy Australia, Simply Energy, Amber and others recognised automatically — no manual tariff entry.
Time-of-use tariff modelling
Peak, off-peak, and shoulder rates applied correctly — not a blended flat rate.
The problem
Your customer wants the right numbers.
Not the convincing story.
Most proposals come back built on generic assumptions — a flat tariff rate, a battery sized by a rule of thumb, a blended ROI you can't defend.
That customer is making a $15,000–$30,000 decision. They can't see what the recommendation rests on. They're trusting you.
Tools available today produce the proposal — the analysis serves the sale. ENRG ENGINE is built the other way around: the analysis is the product. The numbers either hold up or they don't — and your customer can see exactly why.
Generic tariff assumptions
Most tools use a flat rate — not your customer's actual retailer tariff with time-of-use blocks, demand charges, and network fees.
Battery size by rules of thumb
Days of autonomy and self-consumption targets don't find the battery size that actually minimises the customer's bill.
Blended solar + battery payback
One payback figure hides whether the battery is economically justified on its own. Customers can't evaluate what they're actually buying.
Assumptions you can't defend
When a customer asks "why did you recommend that size?" — can you show them the working?
Real customer value.
ENRG ENGINE
- NEM-specific sizing
- MILP optimisation
- DNSP · REPS · VPP
- Transparent inputs
- Split solar + battery ROI
- System cost only
- No layout or design
Design Tools
- Roof design and layout
- Full system pricing
- Compliance docs
- CRM and lead management
- Proposal delivery
- Some financial analysis
- Serves the proposal
Installation
- Panels mounted
- Battery installed
- Grid connection
- CEC accredited
- System commissioned
- On site
- No analysis
Where ENRG ENGINE sits relative to everything else.
How it works
From customer inquiry
to numbers that hold up.
ENRG ENGINE handles the analysis. You handle the relationship.
The difference
Other tools deliver a proposal.
This one performs the analysis.
Existing tools focus on the design. ENRG ENGINE determines whether the numbers hold up.
- Accuracy and transparency — every assumption stated, every number defensible
- Battery sized to the customer's actual tariff — smaller when smaller is right
- No equipment partnerships. No commercial bias.
- Built for the Australian NEM — DNSP, tariffs, REPS handled automatically
The ROI either works or it doesn't.
Your customer deserves a clear answer.
Early access