01 / SOLAR AT WORK
A roof that contributes
to the working day.
Solar generation is most useful when you understand it alongside the way your business uses electricity.
Generation meets demand.
Electricity generated on the roof can supply power your business is using at the time. How much imported electricity it replaces depends on the generation profile and the timing of that demand.
The grid remains part of the system. Storage may shift some energy to later use; any export depends on the design and agreed connection. Solar does not establish complete independence or guarantee a lower bill.
Further reading: Australian Government: using generation on site.
THE BUSINESS CASE
Start with the inputs.
Then judge the investment.
Installation is a separate investment from the £300 application service. A useful proposal should connect the expected generation to your premises, costs and actual electricity use.
- Your roof and system
- Design, installation and connection costs; expected generation; maintenance and finance.
- Your working day
- Measured demand and when it occurs—not just an annual electricity total.
- Your arrangements
- Import tariffs, any agreed export arrangement, and the costs and operation of optional storage.
EQUIPMENT & SUPPORT
Look beyond the
headline warranty.
Equipment selection, applicable type-test documentation, installation and ongoing support all matter. Ask what is proposed, what documentation supports it and who will help if a component needs attention.
- Product warranty
- Cover for defined product faults, subject to the warrantor’s terms.
- Performance warranty
- A stated output commitment under specified conditions. It is not a forecast of your bills or total system performance.
Compare those with installation workmanship cover. The generic equipment in the film is an illustration, not an endorsed specification.
THE LONGER VIEW
A whole-life
view.
Solar generates electricity without burning fuel during operation. Life-cycle studies find lower greenhouse-gas emissions for solar electricity than fossil-fuel generation, while also accounting for manufacturing, transport and end of life.
Consider the proposed system’s useful output, its materials and how equipment will be maintained and eventually recovered. We do not attach a carbon saving or an environmental equivalent to the illustrative campus.
Further reading: IEA PVPS: environmental life-cycle assessment. These studies do not provide a figure for your roof.
Recorded generation example
A supplied historical record, separate from the illustrative site in the journey.
206.41 kWh recorded that day
Daily total transcribed from the Tigo portal. Not independently verified. This is a historical record, not a live feed or a forecast. No Aesir installation or customer endorsement is claimed. The 879-module campus is a separate illustration.
Supplied hourly source note: read off the Solar Production bar chart; approximate to ~0.2 kWh.
Approximate hourly readings
| Hour shown | Approximate energy (kWh per hour interval) |
|---|---|
| 06:00 | 0.5 |
| 07:00 | 4 |
| 08:00 | 7.2 |
| 09:00 | 7.7 |
| 10:00 | 16.3 |
| 11:00 | 25.5 |
| 12:00 | 24.2 |
| 13:00 | 29 |
| 14:00 | 25.9 |
| 15:00 | 25.4 |
| 16:00 | 20.7 |
| 17:00 | 15.4 |
| 18:00 | 2.9 |
| 19:00 | 0.4 |
| 20:00 | 0.05 |
READING THE RECORD
Energy over time.
Power at a moment.
kWh measures energy over a period. The daily total and approximate hour intervals describe recorded generation. kW measures power at a moment. They answer different questions.
Generation records help an operator see patterns and investigate changes. On their own they do not establish consumption on site, imports, exports, savings or the reason for a change. Compare them with demand records, conditions and the system’s specification.
ABOUT THE JOURNEY
Illustration of operation after the required permissions and commissioning. The commercial campus and its 879 modules are illustrative, not a customer case study or a verified eligible A1-2 design.
The film compresses distance, time and scale to explain the connection from sunlight to useful electrical energy.
About the illustrated journey
Absorb and collect. Silicon absorbs light and transfers its energy to charge carriers. The cell’s structure enables charge separation and current extraction through metal contacts. The photon does not become an electron.
Direct current to alternating current. Module interconnections and a connected DC circuit carry electrical energy from the illuminated array to an inverter, which converts DC to AC.
The blue moving bands illustrate energy flow, not individual electrons or a measured speed. The inverter graph shows voltage changing over time; its curve is not the shape of a cable. Generation requires continuing illumination and a connected circuit.
The generic module, enlarged cell layers and inverter are original educational illustrations. They do not identify a manufacturer, complete string design, equipment rating or live output. Learn more from the DOE cell explanation and inverter explanation.
Energy put to work. Lighting, equipment and screens illustrate operation after the required permissions and commissioning. Ambient daylight is already present; continuing generation and the wider connected system supply useful activity, not one photon or one module.
Optional storage. The example uses a separate bidirectional converter on an AC branch. Available solar energy can charge the battery; later, stored energy can help supply the business. Charging and discharge are separate moments. Storage has finite capacity and power, and conversion incurs losses. Adding a battery does not automatically provide backup: that needs a specifically designed system. Read the DOE storage explanation.
The grid relationship. The later scene illustrates imported supply. Possible export is a different condition; design and the agreed connection determine operation. The illustration does not promise export permission, earnings, complete independence or uninterrupted supply. See National Grid’s G99 procedures for network-specific guidance; project suitability still needs review.
The commercial campus and its 879 modules are illustrative, not a customer case study or a verified eligible A1-2 design. The £300 total covers one suitable Form A1-2 application service, not installation or every commercial project.
Sources for this page
General energy explanations use primary sources. They do not establish the suitability, costs or performance of a particular installation. The historical example has its own supplied-record attribution.
- Australian Government: generation used on site — the relationship between generation and demand; Australian tariffs are not applied here.
- US Department of Energy / FEMP: procuring a photovoltaic system — assessment, costs and maintenance; not a UK finance offer.
- Australian Government: warranty distinctions — types of cover; actual product terms and UK rights need their own review.
- IEA PVPS: environmental life-cycle assessment — lifecycle impacts; no project-specific emissions figure is calculated.
- US Energy Information Administration: measuring electricity — power and energy units.
- Australian Government: monitoring a solar system — generation and additional consumption measurements.
- US Department of Energy: solar and resilience — backup depends on suitable equipment and configuration.
- US Department of Energy: solar energy and storage basics — storage, later use and system context.
- US Department of Energy: inverters and grid services — conversion and the grid relationship.
- National Grid Electricity Distribution: G99 connection procedures — network-specific process guidance; suitability remains project-specific.
Sources reviewed 8 September 2026. Aesir’s application-service scope and fee are the supplied offer, separate from these technical sources.
THE ILLUSTRATED JOURNEY
Image credits
Earth surface imagery: NASA Earth Observatory, Blue Marble: Next Generation, July 2004, by Reto Stöckli. Cloud imagery: NASA Goddard Space Flight Center, by Reto Stöckli, with enhancements by Robert Simmon.
Coastline data: Natural Earth (public domain). The commercial site, equipment and cell cutaway are original illustrations.
The journey combines adapted historical imagery, authored lighting and compressed distances and time. It is a cinematic scientific illustration, not live satellite imagery. NASA does not endorse Aesir Solar.