# StimaPulse > Simple, clear energy decisions for businesses in Kenya. StimaPulse turns an > electricity bill into the solar, battery backup or EV charging system a > business needs, with cost, savings and payback against reviewed KPLC tariffs, > then helps it compare supplier quotes on the same basis. The calculator and > the Free workspace plan are free; Pro costs KES 250 a month per > organization while StimaPulse is in testing. > > Full technical documentation and datasets for LLM ingestion are available at: > [llms-full.txt](/llms-full.txt) ## Pricing - [Free Plan](/pricing) (KES 0): the public solar calculator with no account, plus a workspace with saved projects, web reports and data exports - [Pro Plan](/pricing) (KES 250 a month per organization, testing price): Word and PDF reports, supplier quote requests and comparison, custom tariffs, finance tools and higher limits - Pay for one month of Pro by M-Pesa at https://tihada.com/stimapulse/stimapulse-pro-plan-1-month; each payment covers one month with no automatic renewal, and new customers get a private invitation by email ## Guides - [Guides Index](/guides): Index of solar, storage and EV charging guides - [Solar and EV Calculator](/tools/solar-calculator): Free interactive solar, battery and EV charging calculator for Kenya, from a KPLC bill to array size, inverter, battery, savings and payback - [Solar by County](/solar): Solar by county for all 47 Kenyan counties; each /solar/ page (e.g. /solar/nairobi, /solar/mombasa, /solar/turkana) gives NASA POWER monthly solar resource for the county town, example system output, climate-specific design points and a calculator - [Solar PV & Battery Sizing](/solar-sizing): Solar PV, inverter and battery sizing from real load and site solar data (Kenya) - [Battery Backup & Storage](/battery-storage): Battery backup sizing, usable capacity, backup hours, recharge and generator integration - [EV Charging Infrastructure](/ev-charging): EV charging planning for fleets, buses and motorcycles, charger types, OCPP, KPLC e-mobility tariff - [Commercial & Industrial Solar](/commercial-solar): Commercial and industrial solar, demand charges, time-of-use, payback, supplier comparison - [Solar Water Pumping](/solar-water-pumping): Solar borehole pump sizing, total dynamic head, tank vs battery storage, cost per cubic metre - [Kenya Electricity Tariffs](/kenya-electricity-tariffs): Reviewed Kenya Power (KPLC) tariff rates by customer class, with sources and review dates ## Articles - [Articles Index](/articles): Index of 15 technical planning articles (RSS: /articles/feed.xml) - [Solar for businesses and institutions in Kenya: sizing, savings and payback by sector](/articles/solar-for-businesses-and-institutions-kenya): Shops, hotels, clinics, schools, places of worship, apartment blocks and factories all use power differently. One method sizes solar for each, with worked examples, savings and the main pitfall per sector. - [Solar for farms in Kenya: pumping, irrigation, milk cooling, cold rooms and poultry](/articles/solar-for-farms-kenya): Store water and cold instead of electricity, compare against diesel at the EPRA price, and size for July. Here is how solar works for borehole pumping, irrigation, milk cooling, cold rooms and poultry on Kenyan farms. - [How to read your KPLC bill or token receipt, and what to take from it for solar](/articles/how-to-read-kplc-bill): Your KPLC bill or token receipt shows more than the amount due. The units, tariff class and the charges added to each kWh are what you need to size solar and compare quotes. Here is what each line means. - [Battery backup for KPLC outages: how big a battery do you need?](/articles/battery-backup-kplc-outages): Size a backup battery from the loads you keep on and the hours you need. Keeping lights, a fridge, Wi-Fi and a TV running for 4 hours takes about 1.8 kWh of lithium battery; 8 hours about 3.6 kWh. - [How to compare solar quotes in Kenya: price per kW is not the whole story](/articles/compare-solar-quotes-kenya): Three quotes for the same roof can look KES 140,000 apart and turn out to be much closer. Here is how to compare them on cost per kWh, exact equipment, exclusions, warranties, surge protection and maintenance. - [Diesel generator vs solar hybrid for an off-grid business in Kenya](/articles/diesel-generator-vs-solar-hybrid): A generator's fuel alone costs about KES 100 per kWh at current Nairobi diesel prices. For an off-grid business using 40 kWh a day, a solar and battery hybrid can cut fuel by around 90%. Here is how the numbers work. - [How many solar panels do I need for my house in Kenya?](/articles/how-many-solar-panels-for-my-house-kenya): A home using 300 kWh a month needs about three 620 W panels to cover its daytime use, and 500 kWh about four. Here is a table by monthly use, how a battery and your roof change it, and why to cut water heating first. - [KPLC demand charges: what CI customers pay and how to cut them](/articles/kplc-demand-charges-ci-customers): On a CI1 connection, every kVA of maximum demand costs KES 1,100 a month. Here is why demand charges can be a fifth of a factory's bill, why solar alone rarely cuts them, and what does. - [KPLC time-of-use tariffs: which loads to move to night, and when solar flips the advice](/articles/kplc-time-of-use-load-shifting): On KPLC time-of-use tariffs, night energy costs KES 8 to 11.50 less per kWh. Here is which loads a business can move into the 22:00 to 06:00 window, what it saves, and why solar changes the answer. - [Lithium vs lead-acid solar batteries: the real cost per kWh in Kenya](/articles/lithium-vs-lead-acid-battery-cost-kenya): Lead-acid batteries look cheaper per kWh on the label, but cycled daily they can cost more per kWh delivered than KPLC power. Here is how to compare battery cost per kWh over its life. - [On-grid, off-grid or hybrid solar: which inverter does a Kenyan site need?](/articles/on-grid-off-grid-hybrid-inverter-kenya): An on-grid solar system switches off during a KPLC outage. Off-grid systems run without the grid, and hybrids do both. Here is how each works, who it suits, how to size the inverter, and a full off-grid home example. - [Paying for solar in Kenya: cash, a loan or a power purchase agreement?](/articles/solar-financing-cash-loan-ppa-kenya): Cash gives the biggest saving, a loan spreads the cost, and a power purchase agreement needs no upfront payment. Here is how the monthly numbers compare for a 5 kW system, and the questions to ask before signing. - [Solar payback in Kenya: how to calculate it honestly](/articles/solar-payback-period-kenya): A 5 kW system can look like it pays back in under three years. Allow for unused output, maintenance, an inverter replacement and your real tariff, and the honest figure is closer to four. Here is the method. - [What a KPLC unit really costs: the all-in price per kWh in October 2026](/articles/kplc-bill-cost-per-kwh-october-2026): A domestic KPLC unit costs about KES 28.30 once the fuel cost charge, levies and VAT are added to the KES 18.57 base rate. Here is the breakdown for every customer class. - [Solar and EV charging in Kenya: cars, boda bodas, vans and bus depots](/articles/solar-for-ev-charging-kenya): An electric car driven 50 km a day needs about 2.3 kW of solar, a boda boda 1.4 kW and a van 6.4 kW. What each kilometre costs against petrol and diesel, and how to plan a fleet or bus depot. ## Public pages - [Home](/) : Product overview and the free business calculator - [How It Works](/how-it-works): Steps from a bill to an estimate, a saved plan, a report and supplier quotes - [Pricing](/pricing): Free and Pro plans, prices and what each includes - [Solutions](/solutions): Guidance by business type (shops and offices, hotels, factories, farms, schools and clinics, fleets) - [Schools Solution](/solutions/schools): School decision pack, engagement path, supplier requirements, and engineering review boundary - [Deliverables](/deliverables): What a business gets at each step, and which parts are free - [Methodology](/methodology): Inputs, versioned calculations, scenarios, uncertainty, validation gates - [Trust & Security](/trust): Security, privacy, evidence, availability, operations, disclosed gaps - [Company](/company): About StimaPulse, its purpose and who runs it - [Contact](/contact): Talk to us about workspace access, Pro or supplier quotes (hello@stimapulse.com, support@stimapulse.com) - [Privacy Notice](/privacy): Privacy notice - [Terms of Service](/terms): Terms of service - [Cookie Policy](/cookie-policy): Cookie and browser-storage policy ## Product facts - Browser previews are non-authoritative planning aids. - Persisted server runs are authoritative and versioned; reports cite the engine version. - Regional values (tariffs, solar resource, equipment prices) are supplied as data, never assumed by the calculation engine. - Unavailable forecasts, telemetry, and external services are reported as unavailable rather than substituted with invented values. - StimaPulse is planning software. Site surveys, protection studies, stamped designs, installation, and commissioning remain the responsibility of licensed professionals.