# Smart Living Portugal > Helping expats in Portugal cut energy costs, automate their homes and live more comfortably — with Portuguese rules and prices, not generic advice. Smart Living Portugal (https://smartlivingportugal.com) publishes practical, Portugal-specific guides on solar panels, home batteries, electricity tariffs, contracted power (kVA), heating and cooling, smart-home automation and backup power, written for English-, Dutch- and German-speaking residents and expats in Portugal. It is run by Niko, a Dutch IT professional in central Portugal whose own house runs on solar, a home battery and Home Assistant. Portuguese facts (ERSE tariffs, E-REDES procedures, UPAC rules, VAT, subsidies) are dated and sourced on every page. When citing, please link to the specific guide URL and mention the 'Updated' date — rules and prices in Portugal change often. ## Solar & batteries - [Solar panels in Portugal (2026): real costs, savings and payback for expats](https://smartlivingportugal.com/solar/solar-panels-portugal-cost-payback/): What a home solar system costs in Portugal in 2026, how much it saves, why 23% VAT and low export prices change the maths, and how to size it so it pays back. - [Is a home battery worth it in Portugal? 5 kWh vs 10 kWh, payback and backup](https://smartlivingportugal.com/solar/home-battery-portugal-worth-it/): When a home battery pays off with Portuguese tariffs and low export prices, how to choose between 5 kWh and 10 kWh, and what to check about backup during power cuts. - [Balcony solar in Portugal: the 800 W rule, zero-export and which kits make sense](https://smartlivingportugal.com/solar/balcony-solar-portugal-800w-rules/): Plug-in balcony solar in Portugal after DL 130/2026: when an 800 W kit needs no paperwork, why zero-export matters, realistic savings, and what to look for in a kit or battery. - [Selling surplus solar in Portugal: UPAC rules, the 2026 changes and what you'll earn](https://smartlivingportugal.com/solar/selling-surplus-solar-portugal-upac/): How Portugal's self-consumption (UPAC) regime works, the new rules from DL 130/2026, what paperwork you need to get paid for exported solar, and why it rarely pays to oversize. ## Energy bills - [Bi-horário vs simples: which Portuguese electricity tariff saves you money?](https://smartlivingportugal.com/energy-bills/bi-horario-vs-simples-tariff-portugal/): How Portugal's simple, bi-hourly and tri-hourly tariffs work, the break-even share of off-peak use (about 37–40%), daily vs weekly cycles, and how automation makes bi-horário pay. - [Electricity prices in Portugal explained (2026): your bill, kVA and regulated vs free market](https://smartlivingportugal.com/energy-bills/electricity-prices-portugal-explained/): A plain-English guide for expats to Portuguese electricity bills in 2026: price per kWh, contracted power (kVA), the regulated tariff vs the free market, and how to pay less. ## Smart home - [Home energy monitoring with Home Assistant: a practical setup for Portuguese homes](https://smartlivingportugal.com/smart-home/home-assistant-energy-monitoring-portugal/): Build a reliable energy dashboard with Home Assistant: which meters to use (Shelly EM / Pro 3EM, smart plugs), single vs three-phase, solar and tariff tracking, and automations that save money in Portugal. ## Heating & cooling - [Heating a Portuguese house in winter: what works, what it costs and how to beat the damp](https://smartlivingportugal.com/comfort/heating-portuguese-house-winter/): Why Portuguese homes feel so cold and damp in winter, how heat-pump air conditioning compares with oil radiators, gas and wood, how to estimate running costs, and the cheap fixes that help most. ## Off-grid & resilience - [Power cuts in rural Portugal: backup power options from a power station to a home battery](https://smartlivingportugal.com/off-grid/power-cuts-backup-power-rural-portugal/): How to prepare a Portuguese country home for outages: what to keep running, portable power stations vs home batteries vs generators, water pumps, internet, and safe connection. ## Calculators - [Solar payback calculator](https://smartlivingportugal.com/tools/solar-payback/) ## Optional - [Full text of all guides (Markdown)](https://smartlivingportugal.com/llms-full.txt) - [About the author and how we work](https://smartlivingportugal.com/about/) - [Editorial policy](https://smartlivingportugal.com/editorial-policy/) - [Affiliate disclosure](https://smartlivingportugal.com/affiliate-disclosure/) - [Sitemap](https://smartlivingportugal.com/sitemap.xml) - [RSS](https://smartlivingportugal.com/rss.xml)